Chiropractic therapy is a form of alternative medicine that focuses on diagnosis and treatment of mechanical disorders of the musculoskeletal system, especially the spine. Chiropractors use spinal manipulation and other alternative treatments, such as massage, exercise, and lifestyle advice, rather than drugs or surgery. The main procedures used by chiropractors are manual manipulation and other treatments intended to realign the spine or other parts of the body to relieve pain and improve health.