The pain in the leg can be recovered in a long time, there is no fixed time, it needs to be judged according to different diseases, for example: 1, the leg muscle damage caused by trauma, this is caused by soft tissue damage, this recovery time is short, generally need about 2 weeks most can be recovered. 2, the pain caused by leg fracture caused by trauma, this time may be longer, because If the pain is caused by osteoarthritis of the knee joint, this is a chronic disease, caused by degenerative changes in the knee joint, the treatment is mainly symptomatic treatment and delay the speed of degenerative changes in the joint, the pain is mainly reduced, complete treatment is more difficult, complete treatment can only be surgery. The only treatment is surgery.