When an elderly person falls and hits the hip joint (commonly known as the large span), it is easy to develop an intertrochanteric fracture of the femur, also called an intertrochanteric fracture. The proximal femur has a large trochanter (also called the greater trochanter) and a small trochanter (also called the lesser trochanter), and a fracture that occurs between the two is called an intertrochanteric fracture or an intertrochanteric fracture of the femur. The diagnosis of intertrochanteric fracture has the following components: (1) history of trauma; (2) inability to step on the hip; (3) short deformity of external rotation of the affected hip; (4) the affected hip will usually have bruising and positive pressure pain; (usually, the elderly cannot stand up and walk after a fall and the pain is unbearable.) If any of these conditions occur, it is highly recommended that you take the elderly person to the hospital to have an X-ray taken to understand their hip condition and make a clear diagnosis. Treatment of intertrochanteric fracture: The principle of treatment is: to operate if you can tolerate surgery, to fix the fracture, to relieve the pain, to sit up early, to move to the ground, to avoid bed-ridden complications (many elderly people die of fractures because of complications of fractures – lung infection, urinary tract infection, bedsores, lower limb Venous thrombosis, etc.). The surgical options are mostly closed reduction internal fixation, DHS fixation for stable fractures, intramedullary nailing for unstable fractures, and hip replacement for severe comminuted fractures. The advancement of technology and industry has made the operation simple and quick for doctors, and the operation can be completed quickly and minimally invasive. Typical case: Patient Cheng, female, 81 years old, had a right femoral intertrochanteric fracture with closed reduction intramedullary nail internal fixation.