<s>[INST] What Is Inflammatory Arthritis? [/INST] These are primarily caused by an overactive immune system. Essentially the body is recognizing the joint tissues as something foreign that it needs to fight off. It sends inflammatory mediators to fight off the tissue and that causes a lot of damage to the joints. Rheumatoid arthritis is the most common inflammatory arthritis. Other kinds of autoimmune arthritis would include ankylosing spondylitis, psoriatic arthritis and lupus. We don’t really know what causes inflammatory arthritis. Source: Illinois Bone & Joint Institute. Link: https://www.ibji.com/blog/rheumatology-autoimmune-care/common-questions-about-arthritis/. Field: Rheumatology. Disease: Arthritis </s>