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I just went down on a guy for the first time yesterday. I'm wondering what I can get tested for, when, and what the test might be. Thanks!

Hi,

Thanks for your question.

Going down on a guy (or giving oral sex to a penis) is generally considered low-risk, but there are some STIs we see passed that way.

The STIs that can be passed by giving oral sex: Gonorrhea, Chlamydia, and Syphilis.

Gonorrhea and Chlamydia are passed through the ejaculate and pre-cum, and can make an infection at the back of your throat. These are tested by a throat swab.

Syphilis is passed through skin-to-skin contact (for example: penis shaft touching inside mouth). Syphilis is tested through a blood test.

As far as when to test… you want to wait at least 2 weeks after your gave the oral sex. You could also wait a month (4 weeks) and the test results would be even more accurate. Syphilis can take as long as 3 months to show-up after having sex, and you could re-test at that time as well if you wanted.

Please let us know if you need any additional information!

Health Nurse

This answer was posted on November 15, 2017

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