In view of the frequency of the dermatological manifestations in patients who suffer from AIDS/HIV, and with the objective of describing their behaviour, a descriptive, observational, and cross sectional investigation was carried out in the cases of the AIDS provincial consultation at Ernesto Guevara General Teaching Hospital of Las Tunas from January, 2007 to June, 2008. The information was obtained from the survey, the dermatological examination, and the clinical charts. The sample was made up of 43 patients, in which males and 31 to 40 age groups prevailed. There were no important quantity differences between the seropositive number and AIDS cases. The 27, 9% had dermatosis that made suspect the presence of the chronic retrovirus. The viral and the mycotic diseases were the most frequent ones, being the neoplastic type and drug reactions the least frequent ones. Other sexually transmitted diseases (STD) appeared associated to the primary disease, mainly herpes simplex type II, and verruca acuminata.