Men who have sex with men blood donor controversy not be accepted at any point in the future, thus constituting a de facto ban. Restrictions vary from country to country and in some countries practice of protected sex or periods of abstinence are not considered. The restrictions affect these men and, in some cases, any female sex partners. They do not otherwise affect other women, including women who have sex with women. The United States Food & Drug Administration (FDA) asserts that the one year deferral window is "supported by the best available scientific evidence". Many LGBT organizations view the restrictions on donation as based on homophobia and not
Men who have sex with men Men who have sex with men Men who have sex with men (MSM), also known as males who have sex with males, are male persons who engage in sexual activity with members of the same sex, regardless of how they identify themselves; many such men do not sexually identify as gay, homosexual or bisexual. The term "MSM" was created in the 1990s by epidemiologists to study the spread of disease among men who have sex with men, regardless of identity. The term "MSM" is often used in medical literature and social research to describe such men as a group for