In recent years, with the emergence and wide application of various imaging techniques, more and more diseases in the medical field have been deeply understood. ct is a non-invasive examination technique with high resolution, which helps to analyze and confirm the diagnosis of many diseases. Some patients who have headache think of going to the hospital for CT examination. So, can CT examination be done for long-term migraine? For patients with cerebral infarction, cerebral hemorrhage, meningioma, brain tumor, glioma and some other substantial intracranial lesions, if headache occurs, it can be detected by doing CT. However, there are many clinical factors that cause headache, including nerve compression, vascular compression, excessive fatigue, mental stress, poor diet and living habits, which cannot be detected by CT, and the diagnosis of migraine needs to be combined with clinical symptoms. Migraine is a disease that involves a wide range of people, and the pain is slowly increasing, either on one side or both sides, or in some cases the whole head. If migraine is not treated well in the early stage, it may escalate to intractable migraine if it recurs for a long time. Intractable migraines are characterized by severe pain, periodic or intermittent headaches, and throbbing or swelling pain. For the patient, having intractable migraine is undoubtedly a plunge into the sea of suffering. With the widespread development of surgical procedures in the clinic, more and more patients are seeing hope and getting out of their misery. Microvascular decompression is a well-established technique for the treatment of intractable migraine with definite results.