Squatting up leg pain is commonly caused by the following: first, popliteal cysts, which are caused by local joint cavity expansion, generally do not need special treatment. However, if the local pain is obvious, it is necessary to pump fluid, or remove the popliteal cyst to relieve the symptoms of pain. Second, local nerve injury, which is often due to trauma or excessive stretching caused by local heat or physical therapy to relieve symptoms, if necessary, oral B vitamins to help recovery. Third, muscle strains, which is often caused by excessive use of the leg, can reduce the activity, while local hot compresses or regular physical therapy, but also need to change the structure of the diet, such as the appropriate intake of vitamin and fiber-rich foods, such as fruits and green vegetables, and appropriate intake of high-quality protein, such as fish, shrimp, etc.. In short, if the pain persists, it is necessary to go to the hospital promptly to clarify the cause.