noun
men who have sex with men; MSM
Medical and public health term; used in clinical, epidemiological, or research contexts to describe behavior rather than identity.
この調査は男性間性交渉者を対象としている。
This survey targets men who have sex with men.
男性間性交渉者の健康リスクについて報告する。
Report on health risks among MSM.
同性愛者 refers to homosexual people as an identity, while 男性間性交渉者 is a behavioral category used in medical contexts, not necessarily implying a gay identity.
Compound of 男性 (male), 間 (between), 性交渉 (sexual intercourse), and 者 (person). A direct translation of the English medical term 'men who have sex with men'.