Rheumatoid arthritis is a common form of inflammatory arthritis. Inflammatory arthritis is an autoimmune disease.
Your body’s normal defence system triggers an attack on the cells in the lining of your joints. The result is pain, tenderness, stiffness and eventually joint damage.
Approximately 90% of people with rheumatoid arthritis report symptoms in their foot* including swelling, soreness, or warmth in joints of the foot. More severe symptoms may include joint instability, changes in the shape of your foot and bursae (fluid filled sacs) developing on the ball or side of your foot.
Sometimes a change in footwear can help ease any symptoms. Padding or special shoe inserts (orthotics) may also help.
* Source - National Rheumatoid Arthritis Society