Picture
Picture

Arthritis


CDC's Approach


In the United States, 24% of all adults, or 58.5 million people, have arthritis. It is a leading cause of work disability, with annual costs for medical care and lost earnings of $303.5 billion.

The most common form of arthritis is osteoarthritis. Other forms include gout, rheumatoid arthritis, and lupus. Symptoms of arthritis are pain, aching, stiffness, and swelling in or around the joints. Rheumatoid arthritis and lupus can affect multiple organs and cause widespread symptoms.

More than half of US adults (57.3%) with arthritis are of working age (18 to 64 years). Arthritis can limit the type of work they are able to do or keep them from working at all. In fact, 8 million working-age adults report that their ability to work is limited because of their arthritis. For example, they may have a hard time climbing stairs or walking from a parking deck to their workplace.

CDC conducts research and supports programs for people with arthritis so they can work and do other daily activities, have less pain, manage their own care, and prevent or delay disability.

Fast StatsIn the United States:1 IN 4 ADULTShas arthritis.1 IN 4 ADULTSwith arthritis reports severe joint pain.1 IN 10 ADULTSlimits activities because of arthritis.$303.5 BILLIONis the annual cost of arthritis in medical spending and lost wages.

CDC’s Approach
Measuring How Many People Are Affected by ArthritisCDC collects arthritis data through the Behavioral Risk Factor Surveillance System and the National Health Interview Survey.  These surveys provide information about:

  • The number and percentage of adults who have arthritis.
  • Whether the numbers or percentages are going up or down.
  • How the disease affects people’s quality of life.


CDC’s Arthritis Program uses this information to guide public health decisions about the best ways to help adults with arthritis.

Promoting Interventions That Reduce Arthritis PainCDC recognizes several proven approaches to reduce arthritis symptoms:

  • Participate in a self-management education program, such as the Chronic Disease Self-Management Program, that teaches the skills and confidence to live well with arthritis every day.
  • Be active. Physical activity—such as walking, biking, and swimming—decreases arthritis pain and improves function, mood, and quality of life. Adults with arthritis should move more and sit less throughout the day. Getting at least 150 minutes of moderate-intensity physical activity each week is recommended. However, any physical activity is better than none. CDC-recommended physical activity programs can improve health for participants with arthritis.
  • Maintain a healthy weight. People can reduce their risk of knee osteoarthritis by controlling their weight.
  • Protect your joints. People can help prevent osteoarthritis by avoiding activities that are more likely to cause joint injuries.
  • Talk with a doctor. Recommendations from health care providers can motivate people to be physically active and join a self-management education program. People with inflammatory arthritis, such as rheumatoid arthritis, have a better quality of life if they are diagnosed early, receive treatment, and learn how to manage their condition.


Increasing Access and Use of Interventions That WorkThirteen states use CDC funding to expand the reach of proven arthritis self-management education and physical activity programs and sustain them over time. States also use CDC funding to increase health care provider counseling about the benefits of physical activity for arthritis management, promote walking, and encourage referral of patients with arthritis to proven intervention programs. Funded states and national organizations have reached over 200,000 adults with these programs.

For example, in New Hampshire, musculoskeletal conditions (including lower back pain, joint pain and osteoarthritis) cost the state $22.1 million in insurance claims in 2019. In response, the New Hampshire Arthritis Program partnered with Anthem Blue Cross, Blue Shield and the state Department of Administrative Services to offer Walk With Ease Self-Directed and Self-Directed Enhanced programs to all state employees, retirees, and dependents.

CDC also works with national organizations to expand the use of evidence-based interventions for adults with arthritis. For example, the National Recreation and Park Association has supported local park agencies in 48 states and American Samoa to deliver the Arthritis Foundation Exercise Program, Active Living Every Day, Fit & Strong!, or Walk With Ease program.

The Osteoarthritis Action Alliance (OAAA) helped expand access to the Self-Directed Walk With Ease program by creating a portalexternal icon that allows people to participate at their own pace. OAAA also worked with partners to develop A National Public Health Agenda for Osteoarthritis: 2020 Updateexternal icon, a guide for using strategies across various sectors to improve the quality of life for adults living with arthritis and other chronic conditions.


Page last reviewed: November 3, 2021
Content source: National Center for Chronic Disease Prevention and Health Promotion

Picture

Rheumatoid Arthritis (RA)    


What is rheumatoid arthritis (RA)?Rheumatoid arthritis, or RA, is an autoimmune and inflammatory disease, which means that your immune system attacks healthy cells in your body by mistake, causing inflammation (painful swelling) in the affected parts of the body.

RA mainly attacks the joints, usually many joints at once. RA commonly affects joints in the hands, wrists, and knees. In a joint with RA, the lining of the joint becomes inflamed, causing damage to joint tissue. This tissue damage can cause long-lasting or chronic pain, unsteadiness (lack of balance), and deformity (misshapenness).
RA can also affect other tissues throughout the body and cause problems in organs such as the lungs, heart, and eyes.

What are the signs and symptoms of RA?With RA, there are times when symptoms get worse, known as flares, and times when symptoms get better, known as remission.
Signs and symptoms of RA include:

  • Pain or aching in more than one joint
  • Stiffness in more than one joint
  • Tenderness and swelling in more than one joint
  • The same symptoms on both sides of the body (such as in both hands or both knees)
  • Weight loss
  • Fever
  • Fatigue or tiredness
  • Weakness

 
What causes RA?RA is the result of an immune response in which the body’s immune system attacks its own healthy cells.  The specific causes of RA are unknown, but some factors can increase the risk of developing the disease.

What are the risk factors for RA?Researchers have studied a number of genetic and environmental factors to determine if they change person’s risk of developing RA.
Characteristics that increase risk

  • Age. RA can begin at any age, but the likelihood increases with age. The onset of RA is highest among adults in their sixties.
  • Sex. New cases of RA are typically two-to-three times higher in women than men.
  • Genetics/inherited traits. People born with specific genes are more likely to develop RA. These genes, called HLA (human leukocyte antigen) class II genotypes, can also make your arthritis worse. The risk of RA may be highest when people with these genes are exposed to environmental factors like smoking or when a person is obese.
  • Smoking. Multiple studies show that cigarette smoking increases a person’s risk of developing RA and can make the disease worse.
  • History of live births. Women who have never given birth may be at greater risk of developing RA.
  • Early Life Exposures. Some early life exposures may increase risk of developing RA in adulthood.  For example, one study found that children whose mothers smoked had double the risk of developing RA as adults. Children of lower income parents are at increased risk of developing RA as adults.
  • Obesity. Being obese can increase the risk of developing RA. Studies examining the role of obesity also found that the more overweight a person was, the higher his or her risk of developing RA became.


Characteristics that can decrease risk
Unlike the risk factors above which may increase risk of developing RA, at least one characteristic may decrease risk of developing RA.

  • Breastfeeding. Women who have breastfed their infants have a decreased risk of developing RA.

 
How is RA diagnosed?RA is diagnosed by reviewing symptoms, conducting a physical examination, and doing X-rays and lab tests. It’s best to diagnose RA early—within 6 months of the onset of symptoms—so that people with the disease can begin treatment to slow or stop disease progression (for example, damage to joints).  Diagnosis and effective treatments, particularly treatment to suppress or control inflammation, can help reduce the damaging effects of RA.

 Who should diagnose and treat RA?A doctor or a team of doctors who specialize in care of RA patients should diagnose and treat RA. This is especially important because the signs and symptoms of RA are not specific and can look like signs and symptoms of other inflammatory joint diseases. Doctors who specialize in arthritis are called rheumatologists, and they can make the correct diagnosis. To find a provider near you, visit the database of rheumatologistsexternal icon on the American College of Rheumatology (ACR) website.

How is RA treated?RA can be effectively treated and managed with medication(s) and self-management strategies. Treatment for RA usually includes the use of medications that slow disease and prevent joint deformity, called disease-modifying antirheumatic drugs (DMARDs); biological response modifiers (biologicals) are medications that are an effective second-line treatment.  In addition to medications, people can manage their RA with self-management strategies proven to reduce pain and disability, allowing them to pursue the activities important to them. People with RA can relieve pain and improve joint function by learning to use five simple and effective arthritis management strategies.

For more information about the treatment of RA, review the Clinical Practice Guidelines for the Treatment of Rheumatoid Arthritisexternal icon from the American College of Rheumatology (ACR) or the ACR’s Rheumatoid Arthritis Patient pageexternal icon.

 What are the complications of RA?Rheumatoid arthritis (RA) has many physical and social consequences and can lower quality of life.  It can cause pain, disability, and premature death.

  • Premature heart disease. People with RA are also at a higher risk for developing other chronic diseases such as heart disease and diabetes. To prevent people with RA from developing heart disease, treatment of RA also focuses on reducing heart disease risk factors.  For example, doctors will advise patients with RA to stop smoking and lose weight.
  • Obesity. People with RA who are obese have an increased risk of developing heart disease risk factors such as high blood pressure and high cholesterol. Being obese also increases risk of developing chronic conditions such as heart disease and diabetes. Finally, people with RA who are obese experience fewer benefits from their medical treatment compared with those with RA who are not obese.
  • Employment. RA can make work difficult.  Adults with RA are less likely to be employed than those who do not have RA. As the disease gets worse, many people with RA find they cannot do as much as they used to. Work loss among people with RA is highest among people whose jobs are physically demanding. Work loss is lower among those in jobs with few physical demands, or in jobs where they have influence over the job pace and activities.


How can I manage RA and improve my quality of life?RA affects many aspects of daily living including work, leisure and social activities.  Fortunately, there are multiple low-cost strategies in the community that are proven to increase quality of life.

  • Get physically active. Experts recommend that ideally adults be moderately physically active for 150 minutes per week, like walking, swimming, or biking 30 minutes a day for five days a week. You can break these 30 minutes into three separate ten-minute sessions during the day.  Regular physical activity can also reduce the risk of developing other chronic diseases such as heart disease, diabetes, and depression. Learn more about physical activity for arthritis.
  • Go to effective physical activity programs. If you are worried about making arthritis worse or unsure how to safely exercise, participation in physical activity programs can help reduce pain and disability related to RA and improve mood and the ability to move. Classes take place at local Ys, parks, and community centers. These classes can help people with RA feel better. Learn more about the proven physical activity programs that CDC recommends.
  • Join a self-management education class. Participants with arthritis and (including RA) gain confidence in learning how to control their symptoms, how to live well with arthritis, and how arthritis affects their lives. Learn more about the proven self-management education programs that CDC recommends.
  • Stop Smoking. Cigarette smoking makes the disease worse and can cause other medical problems. Smoking can also make it more difficult to stay physically active, which is an important part of managing RA. Get help to stop smoking by visiting I’m Ready to Quit on CDC’s Tips From Former Smokers website.
  • Maintain a Healthy Weight.  Obesity can cause numerous problems for people with RA and so it’s important to maintain a healthy weight. For more information, visit the CDC Healthy Weight website.


Learn more about RA


Learn more about arthritis

 
Page last reviewed: July 27, 2020

​Content source: Centers for Disease Control and PreventionNational Center for Chronic Disease Prevention and Health PromotionDivision of Population Health
home

Arthritis



Related Links

Picture

Arthritis Basics    

Español (Spanish)Learn general information about arthritis and what you can do to manage it.

5 Ways to Manage Arthritis

Practice these simple strategies to reduce symptoms and get relief so you can pursue the activities that are important to you.

Fast Facts About Arthritis

Arthritis is a general term for conditions that affect the joints, tissues around the joint, and other connective tissues. Learn more fast facts about arthritis.

Risk Factors
You can decrease your risk of getting arthritis or making arthritis worse by changing the risk factors you can control.
Learn More

Frequently Asked Questions
Arthritis affects 58.5 million US adults, about 1 in 4. Children can also get arthritis. Learn more about arthritis and how you can manage it.
Learn More

Physical Activity for Arthritis
If you have arthritis, participating in joint-friendly physical activity can improve your arthritis pain, function, mood, and quality of life.
Learn More

Arthritis TypesInformation about the most common types of arthritis, including osteoarthritis, rheumatoid arthritis, gout, fibromyalgia, and childhood arthritis.

Page last reviewed: December 2, 2021
Content source: Centers for Disease Control and PreventionNational Center for Chronic Disease Prevention and Health PromotionDivision of Population Health

Picture

5 Ways to Manage Arthritis

Español (Spanish)

There are a lot of things you can do to manage your arthritis. The day-to-day things you choose to do to manage your condition and stay healthy are “self-management” strategies and activities. CDC’s Arthritis Program recognizes five self-management strategies for managing arthritis and its symptoms.
Practice these simple strategies to reduce symptoms and get relief so you can pursue the activities that are important to you. These strategies can even help you manage other chronic conditions you have.

Managing Arthritis: Strive for Five

  1. Learn new self-management skills.
  2. Be active.
  3. Talk to your doctor.
  4. Manage your weight.
  5. Protect your joints.


Use these 5 strategies to manage your arthritis at any age.

1. Learn new self-management skills.Join a self-management education workshop, which can help you learn the skills to manage your arthritis and make good decisions about your health.

How can a self-management education workshop help me?
Learning strategies to better manage your arthritis can help you:

  • Feel more in control of your health.
  • Manage pain and other symptoms.
  • Carry out daily activities, like going to work and spending time with loved ones.
  • Reduce stress.
  • Improve your mood.
  • Communicate better with your health care provider(s) about your care.


Learn about CDC-recognized self-management education programs that improve the quality of life of people with arthritis.
Top of Page

2. Be active.Physical activity is a simple and effective, non-drug way to relieve arthritis pain. Being physically active can reduce pain, improve function, mood, and quality of life for adults with arthritis. Regular physical activity can also reduce your risk of developing other chronic diseases, such as heart disease and diabetes. It can help you manage these conditions if you already have them.

Stay as active as your health allows, and change your activity level depending on your arthritis symptoms. Some physical activity is better than none.
The Physical Activity Guidelines for Americans recommend that adults be physically active at a moderate intensity for 150 minutes per week. Visit the health.gov website to learn more about the Physical Activity Guidelines for Americansexternal icon.

Unsure about what kind of activity is safe?

Get more information about how to exercise safely with arthritis or find a community program near you. Physical activity community programs—like Enhanced®Fitness, Walk With Ease, and others—help adults with arthritis be healthier and reduce arthritis symptoms.

Physical Activity for Arthritis

Learn how you can exercise safely to relieve pain and manage your arthritis.

Learn More
3. Talk to your doctor.Talk to your doctor if you have joint pain and other arthritis symptoms. It’s important to get an accurate diagnosis as soon as possible so you can start treatment and work to minimize symptoms and prevent the disease from getting worse.

The focus of arthritis treatment is to

  • Reduce pain.
  • Minimize joint damage.
  • Improve or maintain function and quality of life.


You can play an active role in controlling your arthritis by attending regular appointments with your health care provider and following your recommended treatment plan. This is especially important if you also have other chronic conditions, like diabetes or heart disease.

4. Manage your weight.Losing excess weight and staying at a healthy weight is particularly important for people with arthritis. For people who are overweight or obese, losing weight reduces stress on joints, particularly weight bearing joints like the hips and knees. In fact, losing as little as 10 to 12 pounds can improve pain and function for people with arthritis. At any age, low-impact, arthritis-friendly physical activity (like walking) and dietary changes can help you lose weight.
Learn about managing your weight at CDC’s Healthy Weight website.

5. Protect your joints.Joint injuries can cause or worsen arthritis. Choose activities that are easy on the joints like walking, bicycling, and swimming. These low-impact activities have a low risk of injury and do not twist or put too much stress on the joints. Learn more about how to exercise safely with arthritis.

Sports- or work-related injuries to joints can increase the likelihood of developing osteoarthritis. To reduce the likelihood of developing or worsening osteoarthritis, take steps to minimize or prevent injuries to joints, such as wearing protective equipment and avoiding repetitive motion joint damage.

Related Pages


Page last reviewed: August 16, 2021
Content source: Centers for Disease Control and PreventionNational Center for Chronic Disease Prevention and Health PromotionDivision of Population Healt

Early Arthritis Initiative

The Early Arthritis Initiative (EAI) is committed to the education of the community, local physicians, and individual patients. It was established to:

  • Promote the early identification and treatment of arthritis
  • Support research efforts to determine more effective treatment and prevention strategies for arthritis
  • Provide essential support and education for people with a new diagnosis of inflammatory arthritis


Recent research has shown that early diagnosis and treatment of rheumatoid arthritis can dramatically change the course of the disease. Patients who wait too long to be evaluated and treated may miss out on a narrow window of opportunity to prevent unnecessary destruction of their joints. It is integral to our mission to raise public awareness about the benefits of early detection, diagnosis, and treatment of rheumatoid arthritis, through outreach and community education.

Treatments may include medication for inflammation, medication to prevent joint damage, referrals for exercise and physical therapy, and/or advice about nutrition and supplements. Patients also have the opportunity to learn about what is going on in the world of rheumatology research that could potentially improve their care.
The EAI offers regularly scheduled community lectures and support and education programs for people with RA, which offer unique opportunities for learning about this illness, both from medical professionals and from peers with the same diagnosis. These programs were developed to provide a welcoming forum where people with RA can share concerns and also have access to:

  • Reliable, easy-to-understand illness-related information from healthcare providers
  • Coping strategies and emotional support from peers who understand


Faculty and Staff

The EAI is staffed by a team of experienced physicians and clinicians who have expertise in the diagnosis and treatment of rheumatologic diseases.

  • Theodore R. Fields, MD, Clinical Director, HSS Early Arthritis Initiative
  • Vivian Bykerk, MD, Director, HSS Inflammatory Arthritis Center; Research Director, HSS Early Arthritis Initiative
  • Adena Batterman, MSW, LCSW, Manager, RA Support and Education Programs
  • Joan Westreich, LCSW, Social Work Coordinator, Early RA Support and Education Program
  • Linda Leff, RN, Nurse Manager, HSS Infusion Center


Frequently Asked Questions
What kind of symptoms should be evaluated by a doctor if you suspect arthritis?

  • Joint pain for less than 3 to 6 months
  • Joint swelling or stiffness, particularly in the morning, for less than 3 to 6 months


Strong data shows that it is especially valuable for certain kinds of arthritis, like rheumatoid arthritis, to be diagnosed and treated very early.

Why should I see the doctor for a few aches and pains?

The latest research has shown the critical importance of early treatment of arthritis, especially rheumatoid arthritis and other inflammatory types of joint pain. The earlier you identify the cause of your pain, the better you’ll be able to fight the disease or find out what’s going on. This is particularly true of rheumatoid arthritis, where early identification and treatment can actually stop the disease from progressing further. If you have morning stiffness or swelling of joints, this is an especially important signal that early evaluation is critical.

Why did HSS start the Early Arthritis Initiative?

HSS has the largest rheumatology program in the United States. Many spend most of their time taking care of patients, and some spend almost all their time in research. The Early Arthritis Initiative reflects the collaboration between these two physician groups.

Related Articles

For Professionals

In 2008, the Hospital established the Inflammatory Arthritis Center based on "best evidence medicine" with the following intersecting tenets:

Providing comprehensive care to patients with RA and spondyloarthropathies

  • Educating medical students from the Weill Cornell Medical College, residents from NewYork-Presbyterian Hospital, and fellows and attendings from HSS
  • Facilitating translational research by enhancing communication between basic science researchers and clinicians and formulate the foundations for clinical research at HSS
  • Promoting basic and clinical collaborations with the pharmaceutical industry and participate in the development of novel therapeutics for patients with inflammatory arthritis


​As part of its commitment to providing optimal care to patients, the IAC conducts a weekly clinic, followed by a conference involving rheumatology attendings, a radiology attending, medical students, residents, fellows, and social workers in an interdisciplinary discussion of patients with diverse clinical problems so as to highlight evidence-based therapeutic decisions and assessment of outcomes. The IAC has developed and implemented a comprehensive computerized registry and a database of patients with rheumatoid arthritis. Registries in other inflammatory conditions, including ankylosing spondylitis and psoriatic arthritis, are being developed.

Three clinical trials that were incorporated into the IAC are nearing completion, and two new studies are soon to be launched. Proposals for several investigator initiated trials have been submitted on several topics including the use of a new anti-biological agent, certolizumab. In addition, several national and international database collaborations are being explored. An effort to promote a closer interaction between clinical and basic science research at HSS has been initiated. This translational approach has encompassed several activities, including a project on the
characterization of cytokines and dendritic cells in patients with psoriatic arthritis. Two new fellowship research studies have been proposed that require the facilities of the IAC.

As the IAC continues to develop, the primary objectives will be to continue to build the respective registries so as to begin generating hypotheses, research studies, and publications that cross the basic science and clinical platforms.

Inflammatory Arthritis Center

The physicians and healthcare professionals at the Inflammatory Arthritis Center are committed to improving the lives of people with inflammatory arthritis through individualized, high-quality patient care; education services for patients, family, caregivers and policy makers; and clinical research initiatives designed to gain a better understanding of the causes of inflammatory arthritis and to bring new innovations to patient care. As an internationally recognized Center of Excellence, the IAC is also training the next generation of medical providers.


Patient Care and Education
Inflammatory Arthritis is a serious and systemic disease that includes many subtypes. These diseases predominantly affect the joints, but can also involve other parts of the body including the heart, lungs, eyes and skin. Rheumatoid arthritis is the most common form of inflammatory arthritis, affecting an estimated 2 million people in the United States. However, there are many different kinds of inflammatory arthritis that affect millions more individuals every year.

Most forms of inflammatory arthritis are progressive and, if left untreated, will result in pain, disability, and serious damage to the joints. However, rheumatologists (the physicians who specialize in the care of people with inflammatory arthritis) have more treatments available than ever before to help those diagnosed cope with symptoms and maintain their quality of life. It’s important for those who have been diagnosed to know that a growing body of research shows that treatment is most effective when it begins early in the course of the disease.
The rheumatologists and other staff at the Inflammatory Arthritis Center at Hospital for Special Surgery use a combination of nonsurgical techniques, including medications to relieve swelling and pain, while regulating the immune symptom. For many people with inflammatory arthritis, these treatments successfully control symptoms, and slow or even halt the progress of their disease. Surgical options may be appropriate in certain situations where severe joint damage has occurred.

Resource Guide
Coping with inflammatory arthritis can be challenging. That is why it is important to learn as much as possible about your condition. We hope you will find the resources in this guide to be helpful.

Inflammatory Arthritis Clinic
The Inflammatory Arthritis Clinic assesses and treats patients affected with inflammatory arthritis. The IAC includes health providers dedicated to the care and improved understanding of these disorders. Over 60 patients are treated at this weekly clinic, where they benefit from the highest quality care provided by a multidisciplinary team that includes expert attending physicians who oversee fellows, residents and students, as well as social workers, a radiologist, scientists, nutrition services, occupational therapy and physical therapy. Patients seen in the clinic can be participants in inflammatory arthritis registries and help with scientific studies and physician education.

Experts at the Inflammatory Arthritis Center have authored many articles on Inflammatory Arthritis. See below to learn more about specific types of this disease as well as treatment options.
Major types of inflammatory arthritis include the following:


Fast Facts about Inflammatory Arthritis

  • Inflammatory arthritis refers to a group of disorders caused by an overactive immune system that results in inflammation.
  • Inflammatory arthritis is also described as an autoimmune disease, which means that the body’s immune system sees its own healthy cells and tissues as “foreign”, and sets up to attack them.
  • Most types of inflammatory arthritis primarily affect the joints, tendons and ligaments. However it can also affect the heart, lungs, skin, eyes and other organs.
  • People with inflammatory arthritis can develop the disease at any age, even as toddlers.
  • Symptoms of inflammatory arthritis depend on the type of the disease. Some forms, such as rheumatoid arthritis and psoriatic arthritis affect the smaller joints, while others, such as spondylitis, affect the spine.
  • Inflammatory arthritis is different from osteoarthritis, a disease that is seen more with aging. (Osteoarthritis also affects the joints; however, this is not the result of the body’s altered immune response.)
  • If left untreated, inflammatory arthritis can result in irreversible damage to the joints and other affected organs.
  • Treatment can be most effective when it begins early on in the course of the disease.
  • Rheumatologists are expert physicians specialized in diagnosing and treating inflammatory arthritis and autoimmune diseases where joints can be involved.
  • With treatment, inflammatory arthritis can often be well-controlled and put into sustained remission, a state in which symptoms subside, and the risk of damage is greatly reduced.


​Support and Education ProgramsHSS offers a number of free programs that reflect our comprehensive approach to care for people with rheumatoid arthritis.

Picture

Living with Inflammatory Arthritis: What You Need to Know
HSS Health Connection by Community Education & Outreach
From the issue, Living With Inflammatory Arthritis

By Vivian P. Bykerk, BSc, MD, FRCPC

Inflammatory arthritis is a condition many people endure for a lifetime. Thanks to advances in treatment, however, innovative medications can delay and even halt the progression of the disease, and non-drug approaches have can help relieve symptoms so you can live a full and productive life.


What is inflammatory arthritis?Inflammatory arthritis describes a group of diseases caused by an overactive immune system. The most common symptoms are joint pain and stiffness. Affected joints may feel warm, swollen, and tender. But inflammatory arthritis can also affect other tissues in the body, including the lungs, heart, eyes, skin, and other organs. Left untreated, it can cause irreversible damage. Early treatment is the best way to relieve symptoms and limit the effects of inflammatory arthritis on the body.

While it’s not known what causes inflammatory arthritis in every patient, what is known is that the immune system does not know when to put on the brakes. Normally when we are exposed to bacteria, viruses, or fungi, the immune system produces white blood cells called lymphocytes as well as immune proteins to mount an attack against these invaders. Lymphocytes and immune proteins cause inflammation, which under typical circumstances is limited and resolves once the foreign substance is defeated.

But in someone with inflammatory arthritis, the immune response does not know when to stop. It turns on your body, attacking your own tissues instead of the foreign substance and causes continued inflammation. For this reason, inflammatory arthritis is known as an "autoimmune disease" − auto meaning "self" and “immune” because the immune system loses its ability to distinguish self from foreign.

Inflammatory arthritis vs. osteoarthritis

Although they share some common symptoms, inflammatory arthritis and osteoarthritis are very different diseases. Osteoarthritis is a common condition causing wear-and-tear of the cartilage of the joints due to age and/or prior injury. Here are some other differences:

To view additional content, swipe left
Body parts, tests and causesInflammatory arthritisOsteoarthritis

Parts of body affected
A "systemic" disease which may affect the joints as well as other organs, such as the lungs, heart, eyes, tendons, and skinSymptoms are limited to the joints

Positive biomarker tests
Patients may show elevations in proteins such as rheumatoid factor, C-reactive protein (CRP), and erythrocyte sedimentation rate (ESR) on blood testsBlood tests for biomarkers are negative

Causes
Autoimmune disease related to body-wide inflammation
Mechanical wear-and-tear on joints due to age or injury
Types of inflammatory arthritis

If you are experiencing symptoms that suggest inflammatory arthritis, your doctor will perform a number of tests, including a physical exam, blood tests, and imaging exams (such as X-rays, joint ultrasound, and/or MRI or CT scans). Sometimes the physician takes a sample of fluid from an affected joint for analysis − a procedure called joint aspiration. 

Based on the results of these exams, your physician will determine if you have inflammatory arthritis and if so, which type:

Rheumatoid arthritis (RA) is the most common form of inflammatory arthritis. It tends to involve more than one of the small joints of the hands and feet. In particular, the lining of the joint or tendons (the synovium) is inflamed, causing warmth, pain, and stiffness. In 30% to 60% of people with RA, blood tests confirm the presence of proteins called rheumatoid factor (RF) or anti-cyclic citrullinated peptide (anti-CCP) antibodies. It is very important to control inflammation in the synovium to stop joint destruction and to treat RA to minimize damage to the heart, lungs, and eyes.

Psoriatic arthritis is a type of arthritis called a "spondyloarthropathy" that is a combination of psoriasis (red, scaly patches on the skin, especially the knees, elbows, and scalp) as well as pain and swelling in the large and small joints and sometimes the spine. It can cause complete swelling of a finger or toe − a condition called "dactylitis."

Juvenile idiopathic arthritis (JIA) affects young people under age 16, causing inflammation in the joints and sometimes in the spine and ligaments (tissues that connect bone to bone) that lasts for more than six weeks. Swelling or mobility problems, including a limp if the legs are affected, may be the only signs of JIA. Some types of JIA cause eye inflammation that can occur without symptoms, so prompt diagnosis, treatment, and monitoring of JIA are vital to prevent permanent damage. Children and teens with JIA are best treated by a pediatric rheumatologist.

Ankylosing spondylitis (AS) affects primarily the spin and hip joints, breastbone, and large joints in the body. Over time, AS can result in noticeably reduced motion in the spine. Up to half of people with AS have a gene called HLA-B27, the presence of which can help confirm the diagnosis of this condition when it is found in combination with AS symptoms.

Gout and Pseudogout (calcium pyrophosphate dehydrate deposition disease or CPDD) are forms of arthritis caused by elevated levels of certain crystals in the body. Gout results from excess uric acid, causing it to crystallize in joints such as the big toe and also raising the risk of kidney stones. CPPD occurs when calcium salts form in the joints and are engulfed by white blood cells, provoking inflammation − most commonly in the wrists and knees.
Other autoimmune diseases can cause inflammatory arthritis as a symptom. Examples include Sjogrens syndrome and lupus.

You and your rheumatologist: A lifetime partnershipIf you have inflammatory arthritis, it is imperative that you see a rheumatologist on a regular basis to monitor your health and customize your treatment. Rheumatologists are medical doctors with special training in the care of people with joint diseases and autoimmune diseases. They are different from orthopedists, who are trained in surgery and who may also be involved in the care of people with inflammatory arthritis when medical treatments are not enough.

How do you know whether to start with a rheumatologist or orthopedist? If you have ongoing joint discomfort without chronic swelling or other symptoms, such as fatigue, you may be able to see an orthopedist first. But if your joint pain is accompanied by warmth, swelling, other signs of inflammation, fatigue or discomfort in other parts of your body, a visit to a rheumatologist may be in order. Your primary care physician can guide you.

Because inflammatory arthritis is an autoimmune disease that can affect multiple parts of your body, you may need to see other specialists, too, to keep your symptoms in check and maintain the best quality of life possible.

To prepare for your visit with a rheumatologist:

  • Bring in a full list of your medications, including vitamins and supplements.
  • If you are already taking medications for inflammatory arthritis, make any notes about reactions or side effects you may be experiencing.
  • Bring copies of blood and imaging test reports, which can help your physician better understand your arthritis.
  • Provide a list of all health conditions you have had, prior surgeries, and symptoms you may be experiencing.
  • Prepare a list of questions you may have for your doctor.


Your rheumatologist may choose from a variety of treatment options for inflammatory arthritis, depending on the type and severity of your disease, such as:

  • Nonsteroidal anti-inflammatory drugs (NSAIDs) such as ibuprofen and naproxen.
  • Steroid medications (corticosteroids) such as prednisone, which are typically used for shorter periods of time because of their side effects.
  • Traditional disease-modifying antirheumatic drugs (DMARDs), such as methotrexate, hydroxychloroquine, sulfasalazine, minocycline, and leflunomide.
  • Biologic DMARDs, which target the proteins driving inflammation, such as infliximab, etanercept, abatacept, adalimumab and rituximab. These medications have revolutionized the care of people with inflammatory arthritis, sparing many from surgery.
  • Surgery may be indicated for specific joints with damage that can no longer be controlled by medications.


A diagnosis of inflammatory arthritis can initially feel overwhelming. It can take weeks or even months to come to terms with and understand what having this disease can mean in your life. By developing a close working relationship with your rheumatologist and other caregivers, however, there is much you can do to control inflammatory arthritis and maintain an independent and active lifestyle.

If you or someone you know is living with a chronic inflammatory condition, learn about the different patient support programs available at HSS.
Updated: 2/9/2022

Authors
Vivian P. Bykerk, BSc, MD, FRCPC
Director, Inflammatory Arthritis Center of Excellence

Associate Attending Rheumatologist, Hospital for Special SurgeryRelated articles


 In-person and virtual
physician appointments
Book onlineOr call
+1.877.606.1555
Urgent Ortho CareSame-day in-person or virtual appointments

Get care
Related Content


​Departments and Services


See all Conditions & TreatmentsMake an Appointment at H