How to say "crotch" in Japanese

• 股またJLPT N1approx.Common
  nounCovers the crotch or groin, the part of the body between the legs. This is the word you want for the body sense, as in injuries or clothing references to that area.
• 付け根つけねCommon
  nounMeans the root, joint, or base where a part connects to something larger, so it points to where the legs meet the torso. It is only a marginal match for 'crotch' proper; use it when emphasizing that junction, not the crotch itself.
  彼女かのじょは耳みみのつけ根ねまで赤あかくなった。↗

  She colored up to her temples.

For 'crotch', 股 is the direct word for the part of the body between the legs, while 「付け根」 means a joint or base where something connects, so it suits the area where legs join the torso rather than the crotch itself.

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

• 股またgroin
• 付け根つけねroot
• 股間こかんcrotch
• くろっちcrotch (of clothing)
• 股ぐらまたぐらcrotch
• 小股こまたcrotch