Hip pain generally refers to pain in the hip joint area, which may be caused by trauma to the hip joint, degenerative osteoarthritis or local tumor compression. 1. Hip trauma: Hip trauma, such as car accidents, and some osteoporosis patients, walking accidentally after a fall or sprain, local tissue damage, may appear in the hip joint pain, limited activities. 2. Degenerative osteoarthritis: With age, the joints will undergo degeneration, so degenerative osteoarthritis of the hip joint may occur, the local articular cartilage is destroyed, and the subchondral bone rubs against each other and causes pain. 3. Local tumor compression: pain in hip joint may be caused by tumor in hip joint and tumor compression on nerves. Hip pain may also have other causes, such as femoral head necrosis, lumbar disc herniation, etc. If the pain persists, it is recommended to go to the hospital in time to improve the examination to clarify the cause of the disease, and then give the targeted treatment under the guidance of the doctor, so as to avoid delaying the condition.