This document summarizes a study on the psychosocial impacts of a new HIV diagnosis on men who have sex with men. It describes the study objectives, mixed quantitative and qualitative methods, and key findings. Participants experienced stigma, worries about disclosure to family/work, impacts on relationships, and reconciling views of HIV. They described anxieties around sex and transmission, and future optimism from treatment. The diagnosis prompted complex identity reshaping as they coped with a new HIV-positive identity.