This document will give a brief overview of the main Sexually Transmitted Infections, (S.T.I.s), occurring in North America, some of the symptoms of having an S.T.I. and the tests for detecting them. There are many infections it is possible to get from sexual contact sexual contact. If you have any concerns regarding possible signs or symptoms of an S.T.I. or feel you may have been exposed to an S.T.I. please contact your doctor or your nearest sexual health clinic. This article is to be used as a reference only.