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 ...

STDcheck’s STD Test Recommender tool evaluates which tests you need based on your answers to a few sexual health questions. You can also check the STI screening recommendations that the Centers ...

Anybody who has oral, anal, or vaginal sex, or genital skin-to-skin contact with another person can get STDs — in fact, most sexually active people get one at some point in their life. STDs don’t ...

STDs are infections derived from any type of sexual contact, including oral, vaginal or anal intercourse. Common types of STDs include human immunodeficiency virus (HIV), human papillomavirus (HPV), ...