The 70-year-old old man broke his thigh without surgery can grow on, need to be analyzed according to the specific circumstances of the fracture, if the fracture is not obviously displaced without surgery is possible to recover, if the fracture is obviously displaced, thigh fracture symptoms are more serious, or combined with osteoporosis, etc. need to consider surgery. If a 70-year-old man breaks his thigh, if the fracture is not obviously displaced, the soft tissue damage and neurovascular injury is not serious, this situation can not do surgery, but conservative treatment, i.e., plaster fixation or support fixation, after a period of time the fracture is generally healed. If the fracture end of the old man’s thigh has obvious displacement, and also leads to obvious damage to the surrounding soft tissues and nerves and blood vessels, at this time if not operated on, the fracture will not heal well, and there may also be trauma infections, triggering osteomyelitis, or fracture site deformity healing, which will lead to uneven stress on the joints of the lower limbs. In addition, thigh fracture symptoms are more serious, or combined with osteoporosis of the elderly, in order to alleviate the symptoms, also need to consider surgery. When a 70-something year old breaks his thigh, he should be treated promptly and listen to his doctor’s advice to choose the appropriate treatment plan.