If the patient experiences pain in the back of the hamstring when the leg is straightened, the following treatment measures can be taken. First, it is important to go to an orthopedic clinic as soon as possible to clarify the cause, such as the possible presence of popliteal cysts here, sciatica, or the presence of soft tissue contractures. Second, if the presence of popliteal cysts is clear after consultation, surgery should be performed as soon as possible to remove the cysts, and postoperative anti-infective medication should be used for treatment. Third, if sciatica is clearly present after consultation, conservative treatment is preferred for such patients. Conservative treatment requires patients to maintain strict bed rest, braking and rest in the near future, and to use anti-inflammatory, anti-swelling, pain-relieving and nerve-nourishing drugs for treatment, and for some more serious cases, local pain closure can be done. Fourth, if, after consultation, it is confirmed that the soft tissue contracture is the cause, functional exercises are preferred for this condition, such as stretching exercises under the guidance of a doctor to relieve symptoms.