How to say "urine" in Japanese

• 尿にょうJLPT N1approx.Common
  nounThe neutral, clinical word for urine, used in medical and scientific contexts such as test results or hospital talk. It sounds technical rather than casual, so it is not what you would say in everyday conversation.
  いつもより尿にょうの回数かいすうが多おおいです。↗

  I urinate more often than usual.
• 小便しょうべんJLPT N2approx.Common
  noun, suru verb, intransitive verbCovers urine but with a crude or childish flavor, close to "piss" or "pee"; it can also mean the act of urinating. Avoid it in polite or formal settings, where 尿 or a paraphrase is preferred.
  朝立あさだちやしょんべんまでの命いのちかな。↗

  A morning erection: Will it last only until I take a leak?

Use 尿 for the neutral, clinical or scientific term, and 小便 for everyday or coarse talk; in polite conversation many speakers avoid both and paraphrase.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

• 尿にょうurine
• 小便しょうべんurine
• 小水しょうすいurine
• 小しょうurine
• 下しもlower half (of the body, esp. the privates)
• 聖水せいすいurine (esp. as related to urolagnia)
• 小用こようurination