Medical and formal term for giving birth to more than one baby at a time (twins, triplets, etc.).
I received an explanation from the doctor about the risks of multiple births.
In fertility treatment, the possibility of multiple births can increase.
Compound of 多子 (たし, 'many children') and 出産 (しゅっさん, 'childbirth'). The exact historical derivation is uncertain; the term is used in modern medical contexts.