1. Premature death usually refers to the death of infants or young children before reaching adulthood, especially those born shortly after or shortly after birth.
In ancient literature, premature death sometimes specifically refers to the death of a baby shortly after birth, but there is no strict age limit.
In modern medicine and law, there is no exact and fixed age definition for premature death, but it is usually understood as death during infancy or early childhood, that is, death from birth to pre-school age.