RA is the most common form of autoimmune arthritis. About 75% of RA patients are women. In fact, 1 – 3% of women may get rheumatoid arthritis in their lifetime. The disease most often begins between the ages of 30 and 50. However, RA can start at any age.
RA is a chronic disease that causes joint pain, stiffness, swelling and decreased movement of the joints. Small joints in the hands and feet are most commonly affected. Sometimes RA can affect your organs, such as eyes, skin or lungs.
The joint stiffness in active RA is often the worst in the morning. It may last one to two hours (or even the whole day). It generally improves with movement of the joints. Stiffness for a long time in the morning is a clue that you may have RA, as this is not common in other conditions. For instance, osteoarthritis most often does not cause prolonged morning stiffness.