Walking thigh pain may be caused by the following reasons: 1. There may be a strain of the tendon here. This is often seen when the patient does some passive hip joint activities, which leads to strain here, such as when the patient is skating and often has a strain due to an accidental fall. 2, there may be excessive muscle fatigue here, such as when the patient does a wide range of strenuous activities involving the lower limbs, which may lead to muscle strain or lactic acid deposition, which leads to soreness here. 3. Ischemic necrosis of the femoral head may be present. During the attack of this type of disease, there may be soreness in this area as well as in the knee joint and sacroiliac joint. This pain may also be caused by skin diseases. If the patient often sweats or is fat, it is very easy to cause eczema or ringworm, and when the patient continues to walk, the skin is often rubbed and causes pain at the root of the thigh.