An STD is an infection that you get from someone else by having sex. You can get an STD by having vaginal sex (penis in the vagina), anal sex (penis in the rectum), or oral sex (penis in the mouth ...

While you can get tested at a doctor’s office or a clinic, if you’re concerned about a specific STD, a home test may be a quicker and cheaper way to get results. Testing for STIs at home is ...