👉 Rheumatoid Arthritis (RA) is a chronic inflammatory disease characterized by inflammation in the joints caused by an immune response against the body's own tissues. It can affect various parts of the body, including the hands and feet, knees, elbows, shoulders, hips, wrists, and ankles. The symptoms typically include pain, swelling, stiffness, and fatigue, often accompanied by joint damage. Treatment options vary depending on the severity and underlying cause of the disease.