Some people experience headaches the next day after staying up late for a bloodbath, while others experience headaches when they are stressed and irritable. Migraine is a primary type of headache that affects a wide range of people, including children, adolescents, middle-aged and elderly people. Not only does it trigger some intracranial vascular lesions, but it also causes suicidal tendencies in a small number of people. So, what is migraine and what factors can cause it? Migraines usually start in adolescence, and some may develop in childhood, with a peak in middle age. Medical research has found that genetics, endocrine metabolism, poor diet and lifestyle habits, and nerve compression of blood vessels may all cause migraine. Some scholars have done a survey on migraine patients with family history of migraine and found that if one person in a family has suffered from migraine, the chances of their related first-degree relatives are high. Some scholars have found a special mutation gene for migraine patients, and there is some autosomal dominant heredity. 2. Endocrine and metabolic factors According to relevant data, migraine can be three times more common in females than in males, and the onset of migraine is especially obvious in adolescent females, which is usually stronger during menstruation and less common during pregnancy or after menopause. 3. Bad diet and living habits When emotionally stressed, overworked and poorly sleeping, patients will have obvious migraine. In addition, drinking coffee and red wine in the diet, eating some soy products, cheese and chocolate may induce migraine attacks. 4.Vascular compression of nerves After a long-term study and summary of migraine patients, experts found that the blood vessels and nerves on the scalp of normal people are in a companion relationship and do not compress each other, while the blood vessels and nerves of migraine patients cause abnormal compression or entanglement of the nerves due to various reasons, and under the influence of certain factors, headaches occur. Microvascular decompression is a mature technique with remarkable efficacy and high safety based on the doctrine of vascular compression of nerves, and the incision behind the ear is 3-5 cm.