Elderly people with left femoral neck fracture need to do physical examination, such as looking at the lower limbs with or without deformity, imaging X-ray, blood sampling to check blood routine and coagulation function. Elderly femoral neck fracture will cause mild swelling in the hip, hip pressure and tenderness, inguinal ligament midpoint should also be pressure and pain, hip joint activity disorders, can not walk on the ground, serious will cause the lower limb of the shortening of the external rotation deformity, therefore, in the elderly after the fracture of the neck of the femur should be done after the examination, but also to pay attention to elderly people’s toe activities of the affected limbs and other conditions. After the initial physical examination, it is also necessary to perform imaging tests, such as X-rays, etc. Most of the femoral neck fracture can be detected by X-rays, but if the femoral neck fracture is non-displaced or incomplete fracture generally need to be detected by three-dimensional CT examination and MRI examination. Surgical treatment of left femoral neck fracture in the elderly should also improve the hematological examination, such as blood routine, biochemical routine and coagulation function, etc., and improve the preoperative deep vein ultrasound of the lower limbs, electrocardiogram and cardiac ultrasound and other examinations to assess whether there are obvious contraindications to surgery, such as acute heart infarction and cerebral infarction, etc..