How to say "uterus" in Japanese

• 子宮しきゅうCommon
  no-adjectiveThe anatomical name for the uterus: the organ itself, as discussed by doctors and in pregnancy and everyday health talk. For almost any sense of 'uterus', this is the word to use.
  子宮しきゅう内膜ないまく炎えんは、細菌さいきんが子宮しきゅう内ないに入はいり、内膜ないまくに炎症えんしょうを起おこす病気びょうきである。↗

  Endometritis is a disease where bacteria enter the uterus and cause inflammation of the inner membrane.
• 母胎ぼたいCommon
  nounThe womb thought of as the mother's — the environment of an unborn child — rather than the organ itself. When you simply mean the uterus, this is seldom the word you want; reach for 子宮.

For the uterus as an organ — in medical, pregnancy, or everyday health talk — use 子宮; 母胎 also means womb but presents it as the mother's, the unborn child's environment, and is seldom the word for the organ itself.

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

• 子宮しきゅうwomb
• 母胎ぼたいwomb
• こぶくろwomb