Pain in the top of the head to be alert to the four diseases is not accurate, can lead to a little pain in the top of the head of the disease, including primary headache, cervical spondylosis, hypertension, intracranial aneurysm, occipital neuralgia, intracranial diseases, and so on. 1. Primary headache: for example, tension headache will have pain in the top of the head when the onset of tension headache, and accompanied by obvious tightness, dull pain in the head and so on. 2. Hypertension: when blood pressure suddenly rises and causes hypertensive emergencies, cerebral edema will occur, and patients may also experience headache symptoms. 3. Intracranial aneurysm: the onset of the disease can be due to intracranial occupancy pressure increases, headache symptoms, diagnosed by cerebral angiography and other tests. 4. Occipital neuralgia: this disease is mainly due to the occipital nerve is stuck pressure and other reasons for the emergence of posterior occipital pain symptoms, can be upward radiation to the top of the head. 5. Intracranial space-occupying lesions: including cerebral hemorrhage, subarachnoid hemorrhage, intracranial aneurysm and so on will lead to increased intracranial pressure, and may have symptoms of headache. Patients with headache need to consult a doctor as soon as possible to identify the cause and rational treatment under the guidance of the doctor.