What Are the Different Kinds of RA?

Rheumatoid Arthritis (RA) is a chronic, disabling and progressive autoimmune disease. This painful condition generally causes swelling and damage to cartilage, bones and joints. It can progress quickly and cause severe disability, affecting a person’s ability to perform regular, everyday tasks.


Swelling is present in at least two joints, as well as stiffness, particularly in the morning or after sitting for a length of time. People with RA may also awaken at night due to pain with stiffness. Fatigue is also present as are possible poor appetite and weight loss.

Possible Causes of RA

The cause of RA is unknown, but there is some evidence that infections, diet, viruses, smoking and some injuries may have something to do with its development. There is also a genetic component to the disease, although the chance of transmitting it genetically is considered small.

Knee RA

The knee joints will become tender, warm and swollen if they are affected by rheumatoid arthritis. There will also be severe pain and stiffness.

Hip RA

Hip arthritis may occur later than RA in other affected smaller joints. There is swelling, pain and stiffness, making it difficult to walk.


In addition to the general tender, swollen and warm affects with stiffness and pain, swan neck and boutonniere deformities may also occur.

Rheumatoid Arthritis (RA) is a chronic