Necrosis of the femoral head, dislocation or fracture of the hip joint, synovitis of the hip joint, ankylosing spondylitis can all cause hip pain. Patients should consult a doctor in time, which can be treated by taking ibuprofen and surgery. 1. Necrosis of femoral head: The interruption of blood supply to the femoral head leads to the death of bone marrow components and bone cells, causing structural changes of the femoral head. Patients will have symptoms such as hip pain, limitation of internal rotation and abduction of the lower limbs, etc. Low molecular heparin, ibuprofen and other medications can be taken to relieve the symptoms, and hip replacement can be performed in severe cases. 2. Hip dislocation or fracture: young people have a history of trauma before the occurrence of hip pain, or the elderly have a history of falling, it should be considered as a hip dislocation or fracture, at this time should be under the guidance of the doctor to take x-ray film, after a clear diagnosis can be reset or surgical treatment. 3. Hip synovitis: Inflammation of the synovial membrane of the hip joint due to trauma, bacterial infection and other factors, patients will have hip pain, swelling and functional disorders. Acute attacks should be strictly braked, heat therapy can be carried out, and when the pain is severe, drugs such as ibuprofen can be used. 4. Ankylosing spondylitis: a chronic inflammatory disease that can involve the spine and hip, patients will have hip pain, low back pain, pain can be relieved after activities, such people can use ibuprofen, salicylazosulfapyridine and other drugs for treatment when the pain is severe. Hip pain, need to actively consult the doctor, follow the doctor’s instructions reasonable treatment. The above drugs need to be used under the guidance of a doctor, avoid self-medication.