People often ask me, “Am I suffering from osteonecrosis of the femur? On the one hand, it shows that the awareness of self-care has increased, and on the other hand, it shows the danger of osteonecrosis of the femoral head, which people are afraid to talk about. Yes, femoral head necrosis has a high disability rate, and early detection and treatment is very important. According to statistics, there are 20,000 new cases of osteonecrosis in the United States every year, while Asia is a high incidence region, and it is estimated that there are more than 100,000 new cases in China every year. Because the disease has a high degree of insidiousness, many patients come to the doctor when the femoral head has collapsed and have to receive hip replacement, especially some young patients, which is very distressing. So, what are the early manifestations of femoral head necrosis? Early manifestations include soreness and discomfort pain around the hip joint, especially in the groin area at the root of the thigh, and pain induced by inward rotation of the thigh is more significant. Hip joint movement is partially restricted. Some patients cannot cross their legs. These conditions should promptly go to the hospital. X-rays can be taken, but many early lesions are not detected, and MRI can be done at this time, which can detect lesions six months earlier than X-rays. If you often drink alcohol or apply hormones for a long time or apply high doses of hormones in a short period of time, you should pay more attention. If you have early stage femoral head necrosis (no collapse), do not panic. Do not seek medical help if you have a disease. At present, there are many methods for the treatment of early femoral head necrosis. According to the specific condition, there are many treatments for early stage femoral head necrosis, including weight-bearing restriction, blood-activating drugs, lipid-lowering drugs, diphosphate drugs, anticoagulant drugs (never use them by yourself, they should be applied under the guidance of a doctor) pulse, shock wave, hyperbaric oxygen application. Head preservation surgery includes medullary core decompression, bone grafting, tantalum rod implantation, osteotomy, and cellular therapy. The overall efficiency is around 70%. If the disease continues to progress after treatment, joint replacement may be considered if the femoral head collapse combined with osteoarthritis causes pain and affects your life. If you have advanced osteonecrosis of the femoral head that causes pain and affects your work life, joint replacement may be considered. Joint replacement prosthesis design and materials have evolved dramatically in recent years, and many patients have benefited from them and returned to work and life. There are also a variety of artificial joints to choose from depending on the specific condition.