If you had an STD and someone wants to go down on you will it affect them or their mouth?
Although unprotected oral sex is less risky than vaginal or anal sex when it comes to spreading STDs, it can still put both partners at risk for certain infections. STDs that can be spread during oral sex include gonorrhea, hepatitis A & B, herpes, human papilloma virus (HPV), and syphilis.
If you or your partner might have an STD, it’s a good idea to use protection for oral sex, whether you’re giving or receiving. For safer oral sex, you can use a condom to cover the penis, or a dental dam or plastic wrap to cover the vulva or anus.
Many STDs don’t have symptoms. Answer a few questions and find out if you should get tested for STDs.