What is Rheumatoid arthritis (RA)? Rheumatoid arthritis (RA) is the most common type of autoimmune arthritis. It is caused when the immune system (the body's defense system) is not working properly. RA causes pain and swelling in the wrist and small joints of the hand and feet. Treatments for RA can stop joint pain and swelling. Wong medical centre provides phyneotherapy treatment for those having a rheumatoid arthritis problem. Further information regarding this problem, kindly call us at +60124520077 / 05-3114022. Thank you.