The most common causes of hip pain are trauma, pudendal nerve entrapment syndrome, lumbar disc herniation, pyriformis syndrome, etc. If the symptoms persist, it is recommended to seek medical treatment in time. 1. Trauma: If the patient’s hip is hit by the outside, it will cause muscle or bone injury, or in serious cases, fracture, which will cause the patient’s hip pain. 2. Superior gluteal nerve entrapment syndrome: If the patient suffers from strain injury or trauma that causes compression of the superior gluteal nerve, the patient will experience pain in the buttocks, and in severe cases, the pain will also radiate to the lower limbs. 3. Lumbar disc herniation: after compression of nerve root by lumbar disc herniation, it will cause pain and numbness in lumbar region and buttocks, and also numbness in lower limbs. 4. Piriformis syndrome: the sciatic nerve passes out from the bottom of the piriformis muscle, and when the piriformis muscle is damaged and edema occurs, it will press on the sciatic nerve, which will produce sciatica and the symptom of difficulty in moving, and accompanied by pain in the buttocks. Hip pain caused by a variety of reasons, may also be associated with fasciitis, bone tumors, perianal abscess, bursitis and other diseases, if the symptoms continue to be unrelieved, it is recommended to go to the hospital in a timely manner, by the doctor to identify the cause of the disease, targeted treatment.