What is the difference between cerebral congestion and cerebral hemorrhage?

Cerebral hyperemia is a very common clinical symptom, frequently inquired about by patients. Sometimes, there is a sensation of swelling and tightness inside the head, resembling congestion; at other times, there may be a prickling sensation on the scalp. In such cases, blood pressure measurements often show elevated values. Regarding cerebral hemorrhage, hypertension is a leading cause, making timely control of blood pressure essential. For cases where systolic blood pressure exceeds 180 mmHg, this represents a significant risk factor requiring prompt reduction and continuous maintenance within a stable range.