Common Rheumatic Disorders Osteoarthritis. Rheumatoid arthritis (RA) Lupus. Spondyloarthropathies — ankylosing spondylitis (AS) and psoriatic arthritis (PsA) Sjogren’s syndrome. Gout. Scleroderma. Infectious arthritis. Is rheumatoid arthritis always autoimmune? Rheumatoid arthritis is an autoimmune condition, which means it’s caused by the immune system attacking healthy body tissue. However, it’s not yetRead More →