noun
crotch; groin; area between the thighs
Refers to the area between the thighs, including the genitals. Used in both medical and everyday contexts.
サッカーの試合中、ボールが股間に当たって痛かった。
During the soccer match, the ball hit my groin and it hurt.
股間を冷やすと体全体が冷える。
If you cool your groin area, your whole body gets cold.
股 (また) refers to the crotch or inner thigh area in a more general sense, while 股間 (こかん) specifically emphasizes the space between the thighs, often with a focus on the genital region.
Compound of 股 (こ, 'thigh, crotch') and 間 (かん, 'space, interval'). The reading こ for 股 is a less common kun'yomi variant, while 間 uses the on'yomi.