Old sleep after brain hemorrhage may be caused by drowsiness due to hemorrhage compression of nerves, brain hemorrhage affecting the reticular formation of the brainstem and other reasons.
1. Drowsiness caused by hemorrhage compression of nerves: it is very common for patients with brain hemorrhage to suffer from old sleep. When cerebral hemorrhage occurs, the hematoma will cause compression of brain tissues, which will affect the nerves to a certain extent, leading to hemiparesis in mild cases and drowsiness and hallucinations in severe cases.
2. Cerebral hemorrhage affects the brainstem reticular formation: the brainstem reticular formation has the function of regulating the cycle of sleep and wakefulness. If the brain hemorrhage is serious and affects the normal function of the brainstem reticular formation, then it may lead to drowsiness.
Old sleepiness after brain hemorrhage may also be caused by other reasons, and it is recommended that patients seek medical examination and active treatment in a timely manner to avoid delaying the condition.