Hip bone pain in 70 year olds is considered to be related to osteoporosis, femoral head necrosis, arthritis, trauma and so on. 1. Osteoporosis: due to ageing and hormonal disorders in the body, the elderly can cause a decrease in bone formation and an increase in bone resorption, making them prone to osteoporosis, which can cause pain in the hip bone. 2. Necrosis of the femoral head: there is usually a long-term history of hip pain, and there is often a history of excessive alcohol consumption and hormone use, which can cause ischemic necrosis of the femoral head and gradually aggravate hip pain. 3. Arthritis: Rheumatoid arthritis or osteoarthritis caused by degenerative changes in the hip joint can cause pain in the hip bone. 4. Trauma: when an elderly person falls or suffers a fracture of the neck of the femur due to an impact from an external force, it can also lead to pain in the hip bone and restriction of activities in the 70-year-old. Hip bone pain in the elderly may also be related to other causes, it is recommended to consult a doctor in a timely manner to conduct relevant examinations to determine the cause of the disease, under the guidance of the doctor standardized treatment.