This document summarizes community efforts in Lesotho to increase male involvement in preventing mother-to-child transmission (PMTCT) of HIV and supporting care and treatment. It outlines the high HIV prevalence in Lesotho, particularly among pregnant women. Male support groups have been established, with over 2,600 members, to educate men and encourage their participation in PMTCT. The groups provide training on positive living, counseling, and distributing condoms. As a result, more men are accompanying partners to clinics and more women are accessing PMTCT services.