noun
neonatal melena
Medical term for the passage of dark, tarry stools in newborns, often indicating gastrointestinal bleeding.
See also: メレナ
新生児メレナは、消化管出血のサインとして注意が必要です。
Neonatal melena requires attention as a sign of gastrointestinal bleeding.
メレナ alone refers to melena in general; 新生児メレナ specifies the condition in newborns.
Compound of 新生児 (newborn) and メレナ (melena), a medical loanword from Greek melaina (black).