Can you get genital herpes from a cold sore? – Lucy* Yes — it is possible to get genital herpes from oral sex. Genital herpes is caused by the herpes simplex virus (HSV). There are two types of herpes viruses — HSV-1 and HSV-2. Genital herpes is usually caused by HSV-2; oral herpes (cold sores) is usually caused by HSV-1. However, genital herpes can also be caused by HSV-1. Someone with HSV-1 can transmit the virus through oral contact with another person's genitals, anus, or mouth, even if they don't have sores that are visible at the time. Other than abstinence (not having sex) the best way to help prevent herpes is to use a condom during any type of sex (oral, vaginal, or anal). Girls should have their partners use a dental dam every time they receive oral sex to help protect against genital herpes. And if either partner has a sore, it's best to not have sex until the sore has cleared up. *Names have been changed to protect user privacy. Back to Articles Related Articles Genital Herpes Genital herpes is a sexually transmitted disease (STD). There's no cure for genital herpes, but medicines can help control it. Read More Condoms Condoms may be a good birth control option for couples who are responsible enough to use one each time and people who want protection against STDs. Read More Talking to Your Partner About Condoms Some people - even those who are having sex - are embarrassed by the topic of condoms. Here are some tips for talking about condoms with your partner. Read More If Someone With Herpes Has No Sores, Can It Still Be Passed On? Find out what the experts have to say. Read More STDs (Sexually Transmitted Diseases) You've probably heard lots of discouraging news about sexually transmitted diseases. The good news is that STDs can be prevented. Find out how to protect yourself. Read More Cold Sores (HSV-1) Cold sores (also known as fever blisters) are pretty common and lots of people get them. So what causes them and what can you do? Read More What's a Dental Dam? Find out what the experts have to say. Read More Talking to Your Partner About STDs You know you should talk about sexually transmitted diseases (STDs) before the action starts. But what if the thought of having "the talk" makes you nervous? These tips can help. Read More Note: All information is for educational purposes only. For specific medical advice, diagnoses, and treatment, consult your doctor. © 1995-2021 KidsHealth®. All rights reserved. Images provided by The Nemours Foundation, iStock, Getty Images, Veer, Shutterstock, and Clipart.com.