The main objective is to offer diagnostic tests for HIV, HCV and other STD in the risk group of men having sex with men (MSM) users of Chemsex

The main objective is to offer diagnostic tests for HIV, HCV and other STD in the risk group (MSM users of Chemsex) with the purpose of conduct diagnosis, early treatment and monitoring of this infections and reduce the incidence rate of the same ones

Inclusion Criteria:

• Adults (≥ 18 years)
• Men MSM/transgender referred from PEP office
• Men MSM/transgender referred from urgency service attended for acute intoxication or an STD
• Men MSM/transgender referred from STD office
• Men MSM/transgender referred from a local ONG attended for chemsex use
• Specifically drug use for having sexual relations, at least once in a month in the lasts 6 months or more than 10 times the last year
• Reading and understanding ability
• Patients should be given written informed consent
• Negative HIV and HCV men
• HIV positive men but HIC negative referred from HIV daily hospital
• Disposal of sanitary card from CatSalut

Exclusion Criteria:

• Men that not accomplish inclusion criteria
• Drug use for another purposes not sexual
• Drug use for having occasional sexual relations, least than once in the past 6 months

Men MSM that come from HIV, urgency service and other from the hospital and from a local ONG