perineal region
Anatomical term referring to the area between the anus and the external genitalia.
会陰部の痛みが続く場合は、医師に相談してください。
If you have persistent pain in the perineal region, please consult a doctor.
Compound of 会陰 (perineum) and 部 (region, part). The exact derivation of 会陰 is uncertain, but it is a Sino-Japanese anatomical term.