Why do pupils dilate in cerebral hemorrhage?
Disease description:
My grandfather had a cerebral hemorrhage and developed dilated pupils. Why do pupils dilate after a brain hemorrhage?
Doctor's answer (1)
Dr. Yang Jun
Some patients may develop dilated pupils after intracerebral hemorrhage, which is a sign of brain herniation. This usually occurs when excessive bleeding compresses the oculomotor nerve and brainstem. If a patient exhibits prolonged bilateral pupil dilation, it indicates a severe condition requiring immediate CT scanning and surgical craniotomy to remove the intracranial hematoma.
