Sexually transmitted infections (STIs) are extremely common among people who are having sex, though people don’t always talk about it. It’s important to know your risk factors and engage in sex in ways that you are comfortable with.
If you’re having sex, we recommend that you get tested every three months. Getting tested is the only way to know if you have an STI.
There are different types of STIs: Some are caused by viruses, some are caused by bacteria, and some are parasites. Here are some resources that will help you learn about a few of the most common STIs we’ve seen.
- Hepatitis A, B and C
- Chlamydia, gonorrhea and syphilis
- Herpes, anal or genital warts (HPV) and crabs
More about STIs
Sexual Health Brochures
Check out our collection of gender-inclusive STI brochures--available to download, for free...
What is Hepatitis C?
Hepatitis C is a virus transmitted through contact with infected blood, which can happen when needles and syringes are shared, during sex, and in other ways.
Chlamydia, gonorrhea, syphilis
These common bacterial STIs are treatable and preventable. Know how often you should get tested.
Herpes, genital & anal warts, Crabs
Get the basics about symptoms, treatment and prevention for these common STIs.