STD info

Choose an STD on the left to learn more about:

what it is, what health issues it causes, how it spreads, tests and treatment, and partner notification.

Check out this great side-by-side comparison
of STDs from Smart Sex Resource

What We Do

So They Can Know is a free resource to help you notify your sexual partners that they may have been exposed to a sexually transmitted disease (STD). We provide resources for partners as well.


Who We Are

So They Can Know is a project of Sexual Health Innovations, a non-profit organization dedicated to creating technology that advances sexual health and wellbeing in the United States.


Getting an email

Have you received an email from our site? We want to help you figure out if you are at risk of an STD as well as help you get tested.