Hip bone refers to hip pain, woke up suddenly hip pain, common causes are improper sleeping posture, female physiological period, hip synovitis, femoral head necrosis and so on. 1. Improper sleeping position: due to improper sleeping position, resulting in static damage to the muscles around the hip joint and pain, which is a normal phenomenon, can be relieved after rest. 2. Female physiological period: during female physiological period, lower abdominal pain and hip pain can occur, which is a normal phenomenon. 3. Hip synovitis: due to trauma, sedentary, excessive exercise and other reasons, caused by synovial inflammation of the hip joint, inflammation stimulation will also appear in the hip joint pain. 4. Necrosis of the femoral head: due to long-term drinking, taking hormones and other reasons, causing obstruction of blood circulation in the neck of the femur, ischemic necrosis of the femoral head, thus causing pain. Wake up suddenly hip pain causes more, may also be related to ankylosing spondylitis, hip impingement, hip osteoarthritis, ectopic pregnancy and hip bone tumors and other diseases, if the symptoms continue to be unrelieved, it is recommended to consult a doctor in a timely manner, to clarify the cause of the disease, and to carry out targeted treatment.