Femoral neck fracture refers to the interruption of bone continuity from the femoral head to the base of the femoral neck. According to the fracture site, it can be divided into subcapital femoral neck fracture, basal femoral neck fracture, and transcervical femoral neck fracture. It is more common in middle - aged and elderly people. Due to osteoporosis, degeneration of hip - surrounding muscle groups, slow reaction, or severe trauma, they are more likely to suffer from femoral neck fractures than young people. After a femoral neck fracture occurs, sequelae such as non - union, delayed union of the femoral neck fracture, and avascular necrosis of the femoral head are prone to appear. The main symptoms include hip pain, inability to stand and walk, and external rotation deformity of the lower limb. Generally, surgical treatment is required.