Rheumatology is the branch of medicine that deals with disorders and dysfunctions of the musculoskeletal system, responsible for a human being's movements. In particular, it covers inflammations of the bones, joints and musculature, but also includes inner organs and the nervous system.

The rheumatologist is an expert in disorders such as arthritis, arthrosis and osteoporosis. He is mainly concerned with diagnosing and treating these conditions. He knows how to perform the major forms of examination, such as ultrasound, or extracting fluid from the joints. As many rheumatic conditions are very painful, he also knows how pain has to be combated.

The rheumatologist is able to call upon a range of drugs to treat these conditions. He is also familiar with the various forms of therapy used by the specialist in physical medicine and rehabilitation.