Frequently Asked Questions (FAQ's) What is Rheumatology? Rheumatology is a subspecialty of medicine which deals with diagnosis and treatment of diseases of bones, joints, muscles, ligaments, tendons and connective tissue. Rheumatological disorders range from chronically disabling arthritis like rheumatoid arthritis and ankylosing spondylitis to multisystem diseases like vasculitis to milder but nagging and persistent pains like chronic back pain & neck pain. Who is a Rheumatologist ? Whether to see a Rheumatologist or an orthopedic surgeon ? What is the difference between Rheumatologist and an orthopedic surgeon ? Whether to see a Rheumatologist or an orthopedic surgeon ?