Hand surgery is a specialized field of medicine that focuses on the diagnosis and surgical treatment of conditions that affect the hand, wrist, and forearm. It can be used to treat a wide range of conditions, including carpal tunnel syndrome, fractures, and tendon injuries. It can also be used to repair nerve damage, correct deformities, and replace joints. Depending on the condition being treated, hand surgery may involve open or endoscopic techniques, as well as the use of pins, screws, plates, and other implants.