Primary Care of Men Who Have Sex With Men in the U.S. Military in the Post-Don't Ask, Don't Tell Era: A Review of Recent Progress, Health Needs, and Challenges.

Background: With repeal of "Don't Ask, Don't Tell" (DADT) in 2011 and the Supreme Court decision regarding Section 3 of the Defense of Marriage Act (DOMA) in 2013, military providers are now able to openly address unique health needs of lesbian, gay, and bisexual (LGB) service members and their same-sex spouse beneficiaries. These federal laws created health care barriers, either real or perceived, between providers and patients and often limited medical research involving LGB patients in the Military Health System (MHS). Men who have sex with men (MSM), the largest proportion of LGB service members, represent a segment of the population with the highest risks for disparities in primary care with regard to sexual health and mental health disorders.