RA vs. Psoriatic Arthritis: the Difference?

Rheumatoid arthritis (RA) and psoriatic arthritis (PsA) are both chronic inflammatory diseases that can affect the joints. However, there are some key differences between the two conditions.

Symptoms

* RA typically affects the small joints of the hands, feet, and wrists. It can also cause inflammation in the lining of the lungs, heart, and eyes.

* PsA can affect any joint in the body, but it most commonly affects the joints of the fingers, toes, spine, and sacroiliac joints (the joints between the spine and pelvis). It can also cause inflammation in the skin, eyes, and mouth.

Causes

* RA is an autoimmune disease, which means that the immune system attacks the body's own tissues. The exact cause of RA is unknown, but it is thought to be related to genetic and environmental factors.

* PsA is also thought to be an autoimmune disease, but the exact cause is unknown. It is often associated with psoriasis, a skin condition that causes red, scaly patches of skin.

Treatment

* RA is typically treated with medications that suppress the immune system, such as methotrexate, leflunomide, and hydroxychloroquine. Biologic drugs, such as adalimumab, etanercept, and infliximab, are also sometimes used to treat RA.

* PsA is typically treated with medications that suppress the immune system, such as methotrexate, leflunomide, and hydroxychloroquine. Biologic drugs, such as adalimumab, etanercept, and infliximab, are also sometimes used to treat PsA.

Prognosis

* RA can be a debilitating disease, but it can be managed with treatment. Most people with RA are able to live full and productive lives.

* PsA can also be a debilitating disease, but it is typically less severe than RA. Most people with PsA are able to live full and productive lives.

If you have symptoms of RA or PsA, see your doctor for a diagnosis and treatment.