How to Say ‘One month later’ in Japanese
一か月後
itsu kagetsu go
[ee-chee kah-geh-tsu goh]
💬 Usage Tip: A very clinic-style phrase meaning “in one month.” It’s a common way to say “let’s monitor and recheck.”
🇯🇵 In Japan: Doctors often prefer a concrete timeline like [一か月後] for monitoring results, rather than “sometime later.” They may schedule it before you leave.
Phrase Breakdown
一
itsu
[ee-chee]
one (1)
The number “one.” In the phrase 一か月後, it indicates “one month.”
一か月後にもう一度来てください。
Please come again in one month.
か月
kagetsu
[kah-geh-tsu]
(counter) months
Month counter used with numbers. In 一か月後, it forms “one month.”
症状が続くなら一か月後に受診しましょう。
If symptoms continue, let’s see a doctor in one month.
後
go
[goh]
after; later
In 一か月後, 後 is read ご and means “after,” making the full meaning “in one month / one month later.”
一か月後に結果を見て、薬を調整します。
We’ll look at the results in one month and adjust the medicine.
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