Anonymous: How do you know if you have an STD? what would be the symptoms. for a girl .
The answer to your question really differs from person to person and with what STD someone might have.
Some STDs and people never experience symptoms. Other people, depending on the STD, have pain during urination, discharge or sores around the infected area.
The only way to really know for sure if someone has an STD is to be tested. You can get tested at a local free or low-cost and confidential clinic near you. Find a clinic here.