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Oral sex risk with blood presence

Hello Medhelp,
I have received oral sex and we performed what’s called (deep throating) after a minute or so, I looked at my penis and there was a small amount of visible blood on the skin of it (not the tip) I was very nervous and washed immediately with water. How could that be risky with regard to stds considering having other invisible blood?
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20620809 tn?1504362969
You've asked a lot of std questions. I can tell you are very nervous and have a lot of anxiety related to having sex. Perhaps a regular partner that you know would be a better fit for your mental health, said with kindness. Since you mention blood, I know your mind will go to HIV. I will tell you straight off that oral sex, as you've been told before, is not a risk for HIV.  People just don't get it that way. The ONLY way adults get HIV is to have unprotected vaginal or anal sex or share IV drug needles. Air and saliva inactivate the virus. STd's in general can be transmitted from unprotected oral sex, however. Risk is not terribly large but receiving oral sex does put you at some risk.

Here is an answer from an HIV expert that has been affiliated with medhelp:
I'll start with the general reassurance that oral sex is safe sex. Not totally free of STD risk, but much safer than vaginal or anal intercourse.  The odds are strong you didn't catch any STD at all.  To the specific questions:

1) The most common STD after oral sex is nongonococcal urethritis (NGU), often due to normal oral bacteria.  When not due to chlamydia, which is not transmitted by oral sex, NGU is never serious and usually causes no problem in men's sex partners, so it's not a serious worry.  Other possibilities are gonorrhea, herpes due to HSV-1, and syphilis.  All these are rare outcomes of oral sex.  There is controversy about HIV; it is exceedingly rare after oral sex, if transmission occurs at all.

2) In theory, the chance of syphilis or herpes might be elevated by local skin trauma, but by too little to matter.

3) Whether acquired orally or by vaginal/anal sex, the symptoms are the same:  discharge of abnormal pus or mucus from the penis, sometimes accompanied by painful urination (gonorrhea, NGU); or penile sores (herpes, syphilis).  Gonorrhea usually causes symptoms within 5 days, NGU 7-10 days, herpes 2-5 days, syphilis up to 3 weeks.  If you decide to be tested even without symptoms, a gonorrhea test can be done reliably any time now -- 2 days after exposure is plenty.  A syphilis blood test can be done at 6 weeks, and HIV testing could be done at the same time.  I recommend against testing for HSV unless there are symptoms that suggest herpes.

4) Almost certainly you will be in the clear if you have no symptoms within 10 days.  This isn't a guarantee, but if I were in your situation, I would feel comfortable resuming unprotected sex with your regular partner.
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