Lúnèi chūxuè shì yī zhǒng wēijí shēngmìng de jízhèng.
Intracranial hemorrhage is a life-threatening emergency.
Tips
memory
颅 (skull) + 内 (inside) + 出血 (bleed) = 'bleeding inside the skull'. The character 颅 has 页 (head) on the right, marking it as a head-related character, same family as 额 (forehead) and 颈 (neck).