Femoral head necrosis is an orthopedic disease, so it has a wide range of susceptible people. After years of research, orthopedic experts have found that the factors causing femoral head necrosis can be roughly divided into: glucocorticoid users, long-term heavy drinkers, those who have had hip trauma and some other classifications. 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 femoral head necrosis. 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 buttocks, groin area, etc., and you are between 30 and 50 years old (the age group where osteonecrosis of the femoral head caused by drinking is most common), you must be careful and go to the hospital for CT or MRI examination as soon as possible, which can reveal some subtle changes in 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, the 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, etc.) Rheumatic diseases are a large group of diseases that have different causes but have in common the involvement of joints and surrounding soft tissues, including muscles, ligaments, bursae, and fascia. In addition to pain, joint lesions are accompanied by swelling and impaired mobility, and have a chronic course of alternating episodes and remissions. Some patients may suffer from joint disability and visceral failure, which can lead to bone loss and osteonecrosis of the femoral head. Others Diving, flying, obesity, hypertension, diabetes, atherosclerosis, gout, radiotherapy, post-burn, and hemoglobinopathies are also high-risk groups for osteonecrosis of the femoral head.