Femoral head necrosis, is an ischemic necrosis caused by long-term blood loss to the femoral head. Its pathology is characterized by vascular obstruction of the upper anterior weight-bearing surface of the femoral head, and the self-repair of the femoral head is obstructed by subchondral fractures, collapse, compression and fragmentation, followed by deterioration and progressive osteoarticular changes. With the abuse of hormones and lifestyle changes, the incidence of ischemic necrosis of the femoral head is increasing year by year and has become one of the major medical challenges today because of its important function and complexity of treatment. The research on its pathogenesis and clinical prevention and treatment has been a hot spot for medical research in various countries. However, although the basic research on femoral head necrosis in Western medicine has entered the cellular and molecular research level in recent years, and the clinical treatment measures for femoral head necrosis are mainly artificial head replacement, the incidence and disability rate of femoral head necrosis have not been reduced, and the quality of patients’ survival has not been improved. Moreover, artificial femoral head replacement is suitable for patients over 65 years old with severe femoral head necrosis, and the operation is risky, costly and has a series of postoperative complications, thus discouraging many patients. Therefore, especially for the current trend of younger onset of the disease, it is especially important to adopt effective treatment methods to relieve or alleviate the patient’s pain and hip dysfunction, cure the disease or delay the artificial femoral head replacement. It has been clinically found that fire acupuncture has good efficacy for femoral head necrosis, especially for those patients whose pain is obvious and seriously affects the functional activities of the hip joint, fire acupuncture can have an immediate effect. According to the author’s clinical research, the main points that should be mastered when treating femoral head necrosis with fire acupuncture are the following two points. 1, fire acupuncture needles should be few and precise. Fire needling itself is an invasive treatment, needling will produce a relatively strong pain, if not handled well, not only damage to normal tissue, and poor patient compliance and affect the continuation of treatment, so needling points should be few and precise. The patient can ask about the general area of pain before pressing the thumb or index finger around the greater trochanter, and the strength is determined by the patient’s tolerance. 2, the needle should be accurate and fast. Use a coarse needle in the alcohol lamp flame burned to red or incandescent, quickly pierce the marked point and quickly out of the needle, into the needle depth depends on the patient’s body type and specific parts. The depth of needle entry depends on the patient’s body type and the specific site. Generally, a relatively deep entry is taken, but one must be familiar with the anatomy around the femoral head, and the nerve trunk travels in the area with extra caution and care. Each pressure point is pricked 2-3 times. Typical case Sun, male, 46 years old, due to long-term alcoholism and unreasonable work and rest habits, 4 years ago he felt pain in both hips, especially on the right side, but did not pay attention to it, and then the pain expanded and deepened, and gradually became unbearable in the waist and hip area, especially at night, which seriously affected the quality of sleep. Later, in a western hospital, the pelvic plain film showed that the bone density of the femoral head was increased bilaterally, and a number of vesicular hypodense shadows were seen scattered, and the bone trabeculae were disrupted. The diagnosis was bilateral ischemic necrosis of the femoral head. After conservative treatment by western medicine, the condition did not improve and the symptoms continued to worsen, and then he was recommended to undergo artificial femoral head replacement. On August 10, 2012, the patient came to the clinic with one hand on crutches and was assisted by someone. The skin around the greater trochanter was slightly purple and dull, and the temperature was significantly lower than other parts of the body. The patient was unable to walk independently, which seriously affected the quality of survival. Subsequently, acupuncture treatment was performed in the outpatient clinic, with milli-needle local deep stimulation and distant extraction of the biliary and bladder meridian points as the main points. After half a month of treatment, the pain improved but was not obvious. Then, we used fire acupuncture: we used the thumb to find the pressure around the greater trochanter of the femur, and observed the patient’s expression at the same time, and if the painful expression appeared when the pressure was found, then we marked the pressure point, and then used a medium-thick fire needle on an alcohol lamp to burn red and then stabbed it quickly. In this patient, multiple pressure points were found when local pressure was applied, and 2-3 needles were selected each time, once every other day. After the first treatment, the patient felt a significant reduction in pain, so he insisted on treatment for more than ten times, and his condition improved after each treatment compared to the last. Less than a month after treatment, the patient’s pain and motor dysfunction improved significantly, and he was able to walk independently without crutches, and only one or two local pressure points remained, and the degree of pressure pain had been significantly reduced, and the skin temperature around the greater trochanter of the femur returned to normal. The patient was able to walk independently without crutches, and only one or two local pressure pain points remained. The radiograph showed that the femoral head trabeculae were more neatly arranged than before the treatment, and the bone density improved. The treatment was ended and the patient was instructed to change his bad habits and continue to observe his health condition. The patient was followed up for 3 months and the disease did not recur. Discussion Femoral head necrosis belongs to the category of thigh palsy, stubborn paralysis and bone paralysis in Chinese medicine. It is caused by the damage of the righteousness and the lack of consolidation of the battalion and guard, so that the evil of wind, cold and dampness takes advantage of the deficiency and enters the meridians and stays in the joints, resulting in stagnation of qi and blood in the meridians and the loss of nourishment of tendons and veins. Therefore, the treatment should be to warm the meridians to disperse cold, remove dampness and relieve pain as the main method. The pain of this disease is severe, the local temperature is low, indicating that the evil of cold and dampness is heavy, serious blockage of the meridians, ordinary milli-needle is difficult to play the role of removing cold and dampness, the role of the meridians? The “burnt needle” “n prick” is fire needle therapy, it has the dual role of acupuncture and moxibustion, not only can open the coup, so that the external cold and dampness of the evil from the surface, but also directly warm the body’s internal Yang Qi, dispel the internal cold, so that the cold and dampness to go, stagnation dissipation, meridians The cold and dampness will be removed, the stagnation will be dispersed, the meridians will be cleared, and the qi and blood will flow and play a better healing effect. Modern experimental research shows that the rapid cauterization of adhesions and degenerated tissues with fire needles can cause necrosis of the cauterized pathological tissues and inflammatory cell infiltration, thus eliminating and absorbing the degenerated necrotic tissues, and the body renews and repairs the necrotic absorbed tissues through normal repair mechanisms, restoring the original tissue structure. In conclusion, the application of this method can release the adhesions and spasm of the tissues around the femoral head, change the spasm of the blood vessels around the femoral head, release the pain and dysfunction, and thus have a profound impact on curing the disease or delaying the time of artificial femoral head replacement.