There are two cases of pain in the lateral thighs: 1, due to strains or strain in the broad fascia tensor muscle of the lateral thigh, as well as the lateral head of the iliotibial fascia and quadriceps muscle. The strain, will produce stimulation of the surrounding, there will be obvious pain feeling, after the injury will also lead to bruising and inflammatory edema, will produce obvious pain feeling, especially when continuing activities, muscle contraction and passive pull, will lead to obvious pain feeling aggravated. 2, due to the outer thigh muscle strain situation, such as walking uneven road, especially walking too much lead to both sides of the thigh muscle The muscle tissue is fatigued due to excessive force activity, which can also produce inflammatory lesions and stimulation of peripheral nerves, which can also lead to pain.