What is the difference between osteoarthritis and rheumatoid arthritis?
 1 rheumatoid arthritis occurs due to an autoimmune response of the body while osteoarthritis is mainly a result of mechanical wear and tear of the cartilage in between the joints 2 osteoarthritis affects older people but rheumatoid arthritis can affect anyone3oth rheumatoid arthritis and osteoarthritis are painful conditions affecting the joints of the human body however there are a number of differences between the two conditions. 