How to say "kidney" in Japanese

• 腎臓じんぞうCommon
  nounThe usual word for the kidney as an organ of the body, in everyday conversation and in medicine alike; when you need to say 'kidney' in Japanese, this is the word to reach for.
  腎臓じんぞうが悪わるいのです。↗

  I have kidney trouble.
• 腎じん
  nounA shortened form of 腎臓, found chiefly in medical and technical language. It is seldom the word a learner needs in ordinary speech; use 腎臓 unless you are reading or writing specialized medical material.
• キドニー
  nounThe English loanword, used mainly in cooking contexts for kidney served as food, as on menus. For the organ itself it is not the usual choice; say 腎臓 instead.

Use 腎臓 for the organ in ordinary and medical talk; 腎 is its shortened form, confined to medical and technical language; 「キドニー」 is the loanword, used mainly for kidney as food.

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

• 腎臓じんぞうkidney
• 腎じんkidney
• キドニーkidney
• まめkidney