How to say "diarrhea" in Japanese
Choosing the right word
- 下痢げりnoun, suru verb, intransitive verbThe common, neutral word for diarrhea itself, covering the condition in both casual conversation and medical contexts; when you simply need to say 'diarrhea', this is the word to reach for.
- 下り腹くだりばらnounA less common word for diarrhea or loose bowels; for the condition itself 下痢 is almost always the better choice, so this is rarely the word a learner needs.
- 下痢ピーげりピーnounA colloquial, playful word for diarrhea, at home in casual conversation; not the choice for formal or medical contexts, where 下痢 is the natural word.
- 冷え腹ひえばらnounPrimarily a word for abdominal chills rather than for diarrhea itself; it is seldom the word you want for an ordinary bout of diarrhea, for which 下痢 is the natural choice.
- 腹下りはらくだりnoun, suru verb, intransitive verbA less common word for loose bowels or diarrhea, describing the same condition as 下痢; worth recognizing, but 下痢 is the choice that works in any situation.
Choose 下痢 as your default word for diarrhea; 「下痢ピー」 is the colloquial variant, 「下り腹」 and 「腹下り」 are less common words for loose bowels, and 「冷え腹」 really means abdominal chills rather than diarrhea itself.
Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only
Japanese equivalents
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