The most common causes of intracranial hypertension are intracranial occupational lesions, cranial trauma or infectious diseases of the central nervous system, cerebrovascular diseases such as cerebral infarction, massive cerebral infarction, cerebral hemorrhage, hypertensive encephalopathy, idiopathic increased intracranial pressure, hydrocephalus, intracranial tumors, and other diseases that cause symptoms of high cranial pressure. The common symptoms of high cranial pressure are severe headache, nausea, vomiting, impairment of consciousness, loss of vision and so on. Patients with hypertension should consult a neurologist or neurosurgeon, and have their heads examined with CT and head MRI, as well as fundus examination. Because the increase of intracranial pressure may last for a long time, it will lead to a series of physiological disorders and pathological changes. Moreover, if the intracranial pressure increases further, it will affect the blood supply to the brain, which will further aggravate the cerebral ischemia and hypoxia and cause cerebral edema, and there is also a risk of progression to brain herniation.