For the causes of leg pain after exercise: First, if the leg pain is caused by local muscle strain after exercise, the best way to relieve the pain is to instruct the patient to stay away from the strenuous environment and to take strict bed rest and protection, which is the best condition for the patient to recover. Second, if the patient’s leg pain after exercise is caused by injury, such as joint capsule, ligament injury and pain symptoms, it is necessary to actively conduct local MRI examination. If the injury is only partial, you can pay strict attention to rest and protection, and apply blood-stasis-boosting drugs for treatment, but for complete rupture of the ligament, it is necessary to actively carry out surgical repair and reconstruction.