Headache after exertion on the toilet can be seen in the following diseases: First, migraine. Migraine patients can have headaches after exertion, including exertion in the toilet. In addition, headache can also occur in the case of poor sleep, emotional excitement, anger, overuse of the brain, cold and so on. Headache can be accompanied by dizziness, nausea, vomiting, fear of light, fear of sound, irritability. A part of people can have visual aura, including visual night defect, visual deformation, visual field with flashes, dark spots, bright lines and other changes, and a part of people can have a family history. Second, hypertension. Patients with high blood pressure can have higher blood pressure after exertion, resulting in headache. Third, be alert to various intracranial lesions. For example, cerebral hemorrhage, cerebral aneurysm, cerebral infarction, intracranial venous sinus thrombosis and other lesions, should be given to the hospital in a timely manner, monitoring blood pressure, head CT, MRI and other tests, in order to avoid delay in treatment.