Rheumatology is a branch of medicine that deals with treating arthritis and joint disorders. It focuses on conditions like arthritis, back pain, osteoporosis, tendinitis, and inflammatory diseases of the joints. Common symptoms include joint pain, stiffness, swelling, and deformities. Treatment involves medications like NSAIDs, DMARDs, physiotherapy, and surgery, as well as lifestyle changes such as exercise, diet, weight control, and avoiding risk factors.