09/05/2022
Osteoarthritis vs. rheumatoid arthritis
OA and rheumatoid arthritis (RA) share the same symptoms but are very different conditions. OA is a degenerative condition, which means that it increases in severity over time. RA, on the other hand, is an autoimmune disorder.
People with RA have immune systems that mistake the soft lining around joints for a threat to the body, causing the body to attack that area. This soft lining, which includes the synovial fluid, is called the synovium. As the immune system launches its assault, fluid buildup within the joint occurs. This causes stiffness, pain, swelling, and inflammation.