The pathogenesis of femoral head necrosis may be related to fat embolism or damage to blood vessels in the bone, etc. Possible causes include hip fracture, heavy use of glucocorticoids, and prolonged heavy alcohol consumption. Ischemic necrosis of the femoral head may occur when the blood supply to nourish the femoral head is impaired, such as hip fracture, and the blood supply to the femoral head is destroyed, but the disease usually lasts for a long time. Large amounts of glucocorticoids can cause the blood to be in a hypercoagulable state, making it easy for fat embolism to occur, with common drugs such as hydrocortisone, prednisone, prednisone, and so on. A large amount of alcohol can affect the body’s lipid metabolism, leading to the destruction of the differentiation ability of bone marrow mesenchymal stem cells, resulting in necrosis of the femoral head. Patients with necrosis of the femoral head are advised to undergo standardized treatment as early as possible under the guidance of a doctor.