There are many causes of daytime headache, and it is very likely to be a functional disease, but if the headache persists, it cannot be ruled out that it is caused by organic factors such as brain tumors, and the diagnosis can only be confirmed by completing relevant tests. If the headache is caused by migraine or neurasthenia, or if the headache is not relieved for a long period of time, the headache may also occur during the day. If the headache persists, it should be considered to be caused by brain tumor occupancy, and head CT should be improved in time.