Lateral thigh pain is commonly caused by the following aspects: 1, trauma or fatigue, if the local injury or this period of time to do strenuous exercise, fatigue climbing, walking, it may be caused by these two situations. 2, local tumors, if there is a local swelling is more pronounced, and the pain is aggravated when you walk, you must suspect that the local muscle or bone tumors can be excluded. 3, it may be caused by nerve pain, such as hip arthritis or femoral head necrosis, affecting the lateral femoral skin and muscle pain. Ultrasound or X-ray film can basically be ruled out. 3, it may be caused by neuralgia, such as hip arthritis or necrosis of the femoral head, affecting the lateral femoral cutaneous nerve, which will cause pain in the skin and muscles of the lateral thigh, or it may be caused by lumbar intervertebral disc herniation or pyriformis syndrome, which oppresses the sciatic nerve and causes the pain in the muscles of the lateral thigh.