This article aims to document the motives for the use of sexual health services among street-involved youths. Thirty-three street-involved youths (18 to 25 years old) were interviewed in individual interviews. The qualitative analysis shows that street-involved youths use biomedical services in order to preserve their sexual health. However, the private and secondary nature of sexuality, especially in the street context, is a barrier to their use of sexual health services. These findings help to rethink the sexual health services available to street-involved youths.