If you have unprotected sex (i.e. without any barriers such as condoms or dental dams) and you are not fully aware of your partner's current sexual health, you may have been at risk from an STI.
There are a wide variety of STIs with a range of symptoms. These can include blistering , sores or skin growths, pain or unusual discharges when going to the toilet.
If there is something unusual or something feels different on or around your sex organs you need to get yourself tested and checked out by a sexual health specialist. Click on the following links to learn more about some of the most common STIs: