Résumé
A transversal study has been performed from June the 7[th] 2001 to January the 4[th] 2002 among 504 women consulting at the Reproductive Health Center of Ariana in the framework of a project in collaboration with Marocco for the prevention of STI. The objec-tif of this projects is to assess STI prevalence and the proportion of asymptomatic carriers. Vaginal, cervical and blood samples have been performed for the screening of most common STI organisms. Urinary samples has been sent to the [Unite de Biologie Moleculaire de L'lnstitut National d'hygiene-Rabat] for PCR test [Chlamydia trachomatis et Neisseria gonorrhoea]. RTI prevalence is 22.6%. IST prevalence [Trichomonas vaginalis, Chlamydia trachomatis and Neisseria gonorrhoeae] including PCR is 5,0% Most common IST organism is Trichomonas vaginalis. The high prevalence of asymptomatic carriers make the management of STI difficult and argue for the syndromic approach for STI management