The whole headache is like going to explode, mainly due to the following reasons: 1. Usually a severe and explosive headache, accompanied by nausea and vomiting, at this time, a cranial CT examination is needed to understand whether there is subarachnoid hemorrhage. 2. The whole headache is like going to explode, ask the patient if he has a past history of migraine or cluster headache, some patients will have a severe and severe headache with nausea and vomiting when they have an acute attack of migraine or cluster headache. Some patients may have severe and intense headache with nausea and vomiting, and the head may feel like it is about to explode. 3. If the whole headache feels like it is about to explode, ask the patient about his or her emotional state and whether he or she has been in a depressed state for a long time.