HIV infection creates diverse representations among sick people, their families, the community and healthcare workers, representations that modify social relationships. To analyze the interpersonal relationships in families of people living with HIV, we began a cross-sectional descriptive study in 2001 of a population of HIV patients treated at an outpatient center in Ouagadougou. Our objectives were to: 1 degree) describe the changes in the social relationships between the subjects and members of their families; 2 degrees) itemize the difficulties they met within their families and identify the different types of discrimination they may suffer there. The systematic inclusion of HIV patients at the treatment center made it possible to question 188 subjects, including 122 women and 66 men aged 19 to 55 years. With the subjects' consent, 66 family members were also interviewed. According to these patients, the principal significant events experienced after disclosing their HIV status were absence of sexual intercourse with the partner (16.0%), rejection by their family (9.6%), taunting, criticism and contempt (6.4%). This conduct came from siblings (25%), other family members (20.8%), neighbours (20.8%), in-laws (16.7%), and the spouse (4.2%). Among our subjects, 74.5% informed their families that they were HIV-positive. Of the family members questioned, 82.1% considered the subject to be a victim and 17.9% considered him or her guilty. After receiving this information 21.5% of the families modified their relationships with the subjects. Despite information and awareness campaigns, HIV infection is laden with emotion and prejudice and subjects its victims to discriminatory behavior. Further public education is necessary to improve acceptance of people with this disease by their family and friends.