noun
excessive bleeding; hemorrhage
Medical term for losing too much blood; used in clinical or emergency contexts.
事故で出血過多になり、緊急輸血が必要だった。
He suffered excessive bleeding from the accident and needed an emergency blood transfusion.
出血 is general bleeding; 出血過多 specifies that the bleeding is excessive or severe.
Compound of 出血 (bleeding) and 過多 (excess, too much).