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Men who have sex with men may donate blood; No deferral, except for blood transfusions.
Men who have sex with men
However, many MSM do not engage in anal sex, and may engage in oral sex , frotting or mutual masturbation instead.
Historically, anal sex has been popularly associated with male homosexuality and MSM.
Description: Since medical literature began to describe homosexuality, it has often been approached from a view that assumed or sought to find an inherent psychopathology as the root cause.