Assess female sexual dysfunction (FSD) risk and associated factors in young Peruvian university women. The method used was a nested case-control study, using the Female Sexual Function Index (FSFI). Cases were defined as women with total FSFI scores at or below 26.55 (increased FSD risk). Demographic characteristics, gynecologic aspects, body mass index, mood disorders, substance abuse, and issues related to the couple, were also evaluated.