What does cerebral hemorrhage pupil dilate mean

For patients with cerebral hemorrhage, once the pupil is dilated, most of them suggest that the condition is more serious at this stage. Due to the large amount of bleeding in patients with cerebral hemorrhage, the bleeding speed is too fast, which produces obvious occupying effect in a short time. The hematoma in the brain causes compression on the peripheral cerebral tissue vascular nerves, resulting in diffuse brain tissue edema. Widespread intracranial pressure increases, it is easy to induce cerebral hernia. once cerebral hernia occurs, it is easy to compress bilateral oculomotor nerve, resulting in oculomotor nerve paralysis. The oculomotor nerve paralysis is characterized by bilateral eyelid lifting difficulties, and can be accompanied by bilateral pupil contraction, bilateral pupil inequality or bilateral pupil dilation, direct light reflex, indirect light reflex disappears. once bilateral pupil dilation occurs, it indicates that the patient is in critical condition at this stage and may show life danger at any time.