生せい後ご

noun, adverb

postnatal; after birth; since birth

Used to describe the period after birth, often with time expressions like 生後3か月 (three months after birth). Can function as a noun or adverbially.

• 生後せいごろっ6か月げつの赤あかちゃんがいます。

  I have a six-month-old baby.

• 生せい後ごすぐに予よ防ぼう接せっ種しゅを受うけた。

  I received a vaccination right after birth.