Understanding Rheumatoid Arthritis (RA)
Medical Review: Dr. Gerald Mastaw, MD – Board-Certified PhysicianLast Updated: October 2025 What Is Rheumatoid Arthritis? Rheumatoid arthritis (RA) is a chronic autoimmune disease where the body’s immune system mistakenly attacks its own joint tissue.This inflammation primarily affects the synovial lining, the soft membrane surrounding joints, leading to pain, swelling, stiffness, and gradual cartilage and…
