Back Pain Health Center
Arthritis: Ankylosing Spondylitis
Ankylosing spondylitis is a type of arthritis that affects the spine. Ankylosing spondylitis symptoms include pain and stiffness from the neck down to the lower back. The spine's bones (vertebrae) may grow or fuse together, resulting in a rigid spine. These changes may be mild or severe, and may lead to a stooped-over posture. Early diagnosis and treatment helps control pain and stiffness and may reduce or prevent significant deformity.
Who Is Affected by Ankylosing Spondylitis?
Spondylitis affects about 0.1 to 0.5% of the adult population. Although it can occur at any age, spondylitis most often affects men in their 20s and 30s. It is less common and generally milder in women and most common in Native Americans.
What Are the Symptoms of Ankylosing Spondylitis?
The most common early symptoms of spondylitis include:
- Pain and stiffness. Constant pain and stiffness in the low back, buttocks and hips that continue for more than three months. Spondylitis often starts around the sacroiliac joints, where the sacrum (the lowest major part of the spine) joins the ilium bone of the pelvis in the lower back region.
- Bony fusion. Ankylosing spondylitis can cause an overgrowth of the bones, which may lead to abnormal joining of bones, called "bony fusion." Fusion affecting bones of the neck, back or hips may impair a person's ability to perform routine activities. Fusion of the ribs to the spine or breastbone may limit a person's ability to expand his or her chest when taking a deep breath.
- Pain in ligaments and tendons. Spondylitis also may affect some of the ligaments and tendons that attach to bones. Tendonitis (inflammation of the tendon) may cause pain and stiffness in the area behind or beneath the heel, such as the Achilles tendon at the back of the ankle.
Ankylosing spondylitis is a systemic disease, which means symptoms may not be limited to the joints. People with the condition also may have fever, fatigue and loss of appetite. Eye inflammation (redness and pain) occurs in some people with spondylitis. In rare cases, lung and heart problems also may develop.
What Causes Ankylosing Spondylitis?
Although the cause of spondylitis is unknown, there is a strong genetic or family link. Most, but not all, people with spondylitis carry a gene called HLA-B27. Although people carrying this gene are more likely to develop spondylitis, more than 75% of these people never develop the disease.
How Is Ankylosing Spondylitis Diagnosed?
The diagnosis of spondylitis is based on several factors, including:
- Symptoms
- Findings on physical examination
- X-rays of the back and pelvis
How Is Ankylosing Spondylitis Treated?
There is no cure for spondylitis, but there are treatments that can reduce discomfort and improve function. The goals of treatment are to reduce pain and stiffness, maintain a good posture, prevent deformity and preserve the ability to perform normal activities. When properly treated, people with ankylosing spondylitis may lead fairly normal lives. Under ideal circumstances, a team approach to treat spondylitis is recommended. Members of the treatment team typically include the patient, doctor, physical therapist and occupational therapist. In patients with severe deformities, osteotomy and fusion can be done.
- Physical and occupational therapy . Early intervention with physical and occupational therapy is important to maintain function and minimize deformity.
- Exercise . A program of daily exercise helps reduce stiffness, strengthen the muscles around the joints and prevent or minimize the risk of disability. Deep breathing exercises may help keep the chest cage flexible. Swimming is an excellent form of exercise for people with ankylosing spondylitis.
- Medications. Certain drugs help provide relief from pain and stiffness, and allow patients to perform their exercises with minimal discomfort. Nonsteroidal anti-inflammatory drugs (NSAIDs) are the most commonly used drugs for spondylitis treatment. Many NSAIDs are currently available. In moderate to severe cases, other medications may be added to the treatment regimen. Disease modifying anitrheumatic drugs (DMARDs) such as Azulfidine and Rheumatrex can be used when NSAIDs alone are not enough to reduce the inflammation, and help to prevent joint stiffness and pain. In addition, the relatively new drugs Enbrel and Remicade have been FDA approved for treating ankylosing spondylitis. A similar drug, Humira has also been shown to improve the pain and stiffness of ankylosing spondylitis.
- Surgery. Artificial joint replacement surgery may be a treatment option for some people with advanced joint disease affecting the hips or knees.
WebMD Medical Reference provided in collaboration with the Cleveland Clinic![]()
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Important Safety Information you should know about HUMIRA® (adalimumab).
Serious infections have happened in patients receiving HUMIRA. These infections include TB (tuberculosis) and infections caused by viruses, fungi, or bacteria that have spread throughout the body. Some patients have died from these infections.
Before starting HUMIRA:
Tell your doctor if you think you have an infection, are being treated for an infection, have signs of an infection (such as a fever, cough, or flu-like symptoms), have any open sores on your body, have warm, red, or painful skin, get a lot of infections or have infections that keep coming back, have or had hepatitis B infection, take the medicine Kineret (anakinra), have TB or have been in close contact with someone who has TB, have lived in an area where TB or histoplasmosis is common, or were born in, lived in or traveled where there is more risk for getting TB. Your doctor should test you for TB before starting HUMIRA. If your doctor prescribes any medicine for the treatment of TB, you should start taking it before starting HUMIRA and take the full course of TB medicine prescribed.
Tell your doctor if you have any numbness or tingling, or have a disease that affects your nervous system such as multiple sclerosis or Guillain-Barré syndrome, have heart failure or other heart conditions, are scheduled for major surgery, are pregnant, become pregnant, plan to become pregnant or are breastfeeding. Tell your doctor if you are allergic to HUMIRA or any of its ingredients or are allergic to rubber or latex. The needle cover of the prefilled syringe and the pen contain dry natural rubber.
Also, tell your doctor if you have recently received or are scheduled for any vaccines. Except for live vaccines, patients may still receive vaccines while on HUMIRA. It is recommended that children with juvenile idiopathic arthritis be brought up to date with all immunizations prior to starting HUMIRA.
After starting HUMIRA:
Call your doctor right away if you get an infection, or any sign of an infection including a fever, feeling very tired, cough, flu-like symptoms, warm, red or painful skin or if you have any open sores on your body. HUMIRA can make you more likely to get infections or make any infection that you may have worse.
Possible side effects of HUMIRA:
Serious side effects, which sometimes lead to death, have happened in patients taking HUMIRA.
- Serious infections. These infections include TB (tuberculosis) and infections caused by viruses, fungi, or bacteria. Your doctor will examine you for TB and perform a test to see if you have TB. If your doctor feels that you are at risk for TB, you may be treated with medicine for TB before you begin treatment with HUMIRA and during treatment with HUMIRA. Even if your TB test is negative your doctor should carefully monitor you for TB infections while you are taking HUMIRA. Patients who had a negative TB skin test before receiving HUMIRA have developed active TB. Tell your doctor if you have any of the following symptoms while taking or after taking HUMIRA: cough, low-grade fever, weight loss, or loss of body fat and muscle.
- Certain types of cancer. There have been cases of certain kinds of cancer in patients taking HUMIRA or other TNF blockers. Patients with RA, especially more serious RA, may have a higher chance for getting a kind of cancer called lymphoma. Some patients receiving HUMIRA have developed types of cancer called non-melanoma skin cancer (basal cell cancer and squamous cell cancer of the skin), which are generally not life threatening if treated. Tell your doctor if you have a bump or open sore that doesn't heal.
- Allergic reactions. Signs of a serious allergic reaction include skin rash, a swollen face, or trouble breathing.
- Hepatitis B virus reactivation in patients that carry the virus in their blood. Tell your doctor if you have any of the following symptoms: feel unwell, poor appetite, fatigue, fever, rash or joint pain.
- Nervous system problems. Signs and symptoms include: numbness or tingling, problems with your vision, weakness in your arms or legs, and dizziness.
- Blood problems. Symptoms include a fever that does not go away, bruising or bleeding very easily, or looking very pale.
- New heart failure or worsening heart failure you already have. Symptoms include shortness of breath or swelling of your ankles or feet, or sudden weight gain.
- Immune reactions including a lupus-like syndrome. Symptoms include chest discomfort or pain that does not go away, shortness of breath, joint pain, or rash on your cheeks or arms that gets worse in the sun.
Call your doctor or get medical care right away if you develop any of the above symptoms. Your treatment with HUMIRA may be stopped.
Common side effects of HUMIRA are: injection site reactions (redness, rash, swelling, itching or bruising), upper respiratory infections (sinus infections), headaches, rash and nausea.
These are not all the side effects with HUMIRA. Ask your doctor or pharmacist for more information.
Information You Should Know About HUMIRA® (adalimumab).
HUMIRA is used to reduce the signs and symptoms of moderate to severe rheumatoid arthritis in adults, may prevent further damage to your bones and joints, and may help your ability to perform daily activities. HUMIRA can be used alone or with methotrexate or with certain other medicines. HUMIRA is used to reduce the signs and symptoms of moderate to severe polyarticular juvenile idiopathic arthritis in children 4 years of age and older. HUMIRA can be used alone or with methotrexate or with certain other medicines. HUMIRA is used to reduce the signs and symptoms of psoriatic arthritis in adults, may prevent further damage to your bones and joints, and may help your ability to perform daily activities. HUMIRA can be used alone or with certain other medicines. HUMIRA is used to reduce the signs and symptoms of ankylosing spondylitis in adults. HUMIRA is used to reduce the signs and symptoms of moderate to severe Crohn's disease in adults who have not responded well to conventional treatments. HUMIRA is also for these adults with moderate to severe Crohn's disease who have lost response or are unable to tolerate infliximab. HUMIRA is used to treat moderate to severe chronic (lasting a long time) plaque psoriasis in adults who are under the ongoing care of a physician, have the condition in many areas of their body and who may benefit from taking injections or pills (systemic therapy) or phototherapy (treatment using ultraviolet light alone or with pills).
HUMIRA is taken by injection.
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