noun, noun or participle which takes 'suru', intransitive verb
loss of blood; blood loss
Medical and general term for losing blood, often from injury or surgery. Can be used as a noun or with する to describe the act of bleeding out.
事故で多量に失血した。
He lost a lot of blood in the accident.
失血が原因で意識を失った。
He lost consciousness due to blood loss.