The symptoms of protruding bones in the hand may be normal bony protrusions, such as the obvious protrusion of the bone joints in the palm of the hand, and the thinner the patient is, the more obvious the phenomenon, which is relatively normal, or because of the place has been injured, due to the deformity of old injuries in the process of recovery, or the emergence of bone hyperplasia, the bone will appear in the later life of the protruding symptoms. It can also be congenital, such as if the patient has a genetic predisposition to have a deformed bone in the hand, so the symptoms of protrusion can occur. It may also be due to inflammation of the soft tissues in the patient’s hands, such as tenosynovitis, arthritis, tendon sheath cysts and other diseases, in which the bones will protrude significantly when the inflammation worsens. Therefore, after this condition occurs, we must go to the hospital in time to take pictures, after detailed examination to clarify the cause of bone protrusion, and carry out rehabilitation treatment under the guidance of professional physicians.