excessive bleeding; massive hemorrhage
Medical and emergency term for severe blood loss, often used in clinical reports, first aid, or news about accidents.
He died from excessive bleeding due to the accident.
In case of massive bleeding, please call an ambulance immediately.
出血 is general bleeding; 出血多量 specifically means excessive or massive bleeding.
大量出血 is a near-synonym also meaning massive bleeding, but 出血多量 is more common in medical and formal contexts.
Compound of 出血 (bleeding) and 多量 (large amount). The exact historical derivation is uncertain, but the word follows standard Sino-Japanese compounding patterns.