Thank you for the opportunity to help you with your question!
The main difference
between osteoarthritis and rheumatoid arthritis is the cause behind the joint
symptoms. Osteoarthritis is caused by mechanical wear and tear on joints. Rheumatoid
arthritis is an autoimmune disease in which the body's own immune system
attacks the body's joints
Please let me know if you need any clarification. I'm always happy to answer your questions.