Top 10 Myths About Safe Sex and Sexual Health

MYTH: You can catch an STD from a toilet seat

Sexually transmitted diseases or infections can't live outside the body for a long period of time—especially not on a cold, hard surface like a toilet seat. Plus, they aren't present in urine, anyway (it's usually sterile), so the chances of you catching one from whoever used the bathroom before you are slim to none, says Dr. Yen.

What you do need to worry about, however, is what may seem like benign skin-to-skin or mouth-to-mouth contact. Kissing, for example, can spread herpes (and deeper kissing can even spread oral gonorrhea and chlamydia, Dr. Yen warns), while skin rubbing together can pass infections such as genital warts, herpes, scabies, and pubic lice.

Next: MYTH: You can't get pregnant the first time you have sex

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