Femoral head necrosis is an orthopedic disease, so it is susceptible to a wide range of people, orthopedic experts after years of research found that the factors causing femoral head necrosis can be roughly divided into: glucocorticoid users, long-term heavy drinkers, those who have had a history of hip trauma and some other classification caused. Long-term glucocorticoid users: Patients whose long-term conditions are not controlled or treated effectively need to take large amounts of glucocorticoids for a long time to control their conditions and are also susceptible to osteonecrosis of the femoral head. Long-term heavy drinkers: Osteoporosis caused by alcoholism is also one of the causes of osteonecrosis of the femoral head. If you have long term heavy drinking habits, if you find pain in the two hip joints or the back of the hip and groin area, and you are in the age of 30-50 years old (the age group in which drinking triggers osteonecrosis of the femoral head), you must be careful and go to the hospital as soon as possible for a CT or MRI examination, which can reveal some subtle changes in the bone quality. Femoral head necrosis has become clinically common and has become a frequent disease that affects people’s health and has a high disability rate. In recent years, the incidence of femoral head necrosis caused by alcoholism has been on the rise, accounting for 1/3 of all inpatients with femoral head necrosis in some hospitals, causing very serious harm. Those who have a history of hip trauma: Femoral neck fracture, hip dislocation or hip trauma without fracture dislocation caused by carelessness in life, work or sports can cause damage to the blood vessels supplying the femoral head, laying a great hidden danger for future femoral head necrosis. Femoral head necrosis is most common in femoral neck fractures, accounting for about 30% of such fractures. Rheumatic diseases (systemic lupus erythematosus, rheumatoid disease, etc.): Rheumatic diseases refer to a large group of diseases with different etiologies but common to the joints and surrounding soft tissues, including muscles, ligaments, bursae and fascia. In addition to pain, joint lesions are accompanied by swelling and impaired mobility, with a chronic course of alternating episodes and remissions. Some patients may also experience joint disability and visceral failure, which can lead to bone weakness, thereby triggering bone changes and leading to femoral head necrosis. Others: Divers, flyers, obesity, hypertension, diabetes, atherosclerosis, gout, people who need to receive radiotherapy, after burns, hemoglobinopathies, etc., are also high-risk groups for femoral head necrosis.