To support people with Human Immunodeficiency Virus (HIV)1 to enjoy good sexual health for their own personal well-being, as well as to help clinicians to provide treatment and care for people with HIV and to prevent onward transmission of the virus and sexual infections. • Target population: adults infected with HIV. This is the first of three planned guidelines to address the sexual health of people with who are HIV positive. The other two under consideration are reproductive health choices for women and sexual dysfunction in men with HIV. This guideline complements existing BASHH Clinical Effectiveness Group guidelines on individual sexually transmitted infections and screening and testing available at: www.bashh.org/guidelines/ceguidelines. There is also a separate BASHH guideline available on post-exposure prophylaxis after sexual exposure (PEPSE) .