Elderly people with thigh root pain after a fall, no swelling, can stand and walk but experience pain at night. Possible causes include soft tissue injury, femoral neck fracture or femoral intertrochanteric fracture. 1. Soft tissue injury: the elderly accidentally fall, may be on the hip skin or soft tissue caused by local damage, local capillary rupture and peripheral nerve damage, which will lead to local pain, the degree of injury is mild local swelling may not be obvious, you can also walk. 2. Femoral neck fracture or femoral intertrochanteric fracture: As most of the elderly are prone to bone loss or even osteoporosis, the femoral neck and intertrochanteric area are cancellous bone, which is very prone to fracture, if it is a stabilized fracture, it can only appear pain, and can also stand and walk. If the elderly fall after thigh root pain, it is recommended that patients seek medical attention in a timely manner, through the examination of the cause of the disease, and then targeted treatment.