Cerebral congestion usually does not lead to immediate death. Cerebral congestion is caused by a sudden increase in the patient’s blood pressure over a short period of time or a rapid rise in intracranial pressure. The main symptoms may be a rapid increase in intracranial pressure, confusion, headache, nausea, and vomiting. Cerebral congestion refers to the patient’s passive dilation of cerebral blood vessels due to a rapid rise in mean arterial pressure within a very short period of time and a breakdown of the automatic cerebral blood flow regulation mechanism. The cerebral blood flow increases and the pressure in the cerebral vessels exceeds the pressure in the interstitium, resulting in extravasation of fluid from the vascular bed and even cerebral edema as well as increased intracranial pressure. When the amount of congestion is not very large, patients often experience dizziness and headache. If an acute attack of cerebral congestion occurs, the amount of congestion is large and the blood pressure is further increased, which may lead to spasm of the small cerebral arteries, headache, nausea, vomiting, and even confusion, and in severe cases, patients may also have clinical symptoms of seizures. For patients with cerebral congestion, it is recommended that they seek medical attention in a timely manner and take appropriate antihypertensive medication or active treatment under medical supervision to relieve the symptoms of cerebral congestion. Although cerebral congestion does not cause immediate death, it can easily lead to cerebral hemorrhage and even death if the symptoms of cerebral congestion are not treated promptly.