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STDs  (Expert Forum)
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Giving oral sex and STD spreading in my body
Answered by
University of Washington Seattle - WA
Welcome to the STD Forum, which is intended only for questions and support pertaining to sexually transmitted diseases other than HIV/AIDS, including chlamydia, gonorrhea, syphilis, human papillomavirus, genital warts, trichomonas, other vaginal infections, nongonoccal urethritis (NGU), cervicitis, molluscum contagiosum, chancroid, and pelvic inflammatory disease (PID). All questions will be answered by H. Hunter Handsfield, M.D. or Edward W Hook, MD.

Giving oral sex and STD spreading in my body

by Jim_303, Aug 31, 2005 12:00AM
I was performing oral sex on several guys I did not know 3.5 months ago. My 3 month HIV test came back negative. After my HIV test came back negative I had unprotected sex with a girl friend. We did not have oral sex just penis in vagina sex. A few days later she was complaining about having a bad bladder infection. Could I have contracted an STD performing oral sex on a guy 3.5 months ago and then give it to her now through my penis? Could that be the cause for her bladder infection?

by H. Hunter Handsfield, M.D., Aug 31, 2005 12:00AM
Bladder infections in women often are triggered by sex--not because the bacteria are transmitted sexually, but because during intercourse bacteria around the vaginal opening can be massaged into the woman's urethra.  Chlamydia and gonorrhea can cause the same symptoms.

The only STDs that can be acquired orally and then passed genitally are HIV, which you don't have and wouldn't cause your partner's symptoms anyway; and syphilis.  Syphilis is epidemic in gay men, so you could have been exposed.  But if you acquire syphilis orally, you would know it by the sore (chancre) in or near your mouth; and you would then have to progress to the skin rash of secondary syphilis, which usually is pretty noticeable; and that rash would have to cause an open sore on the penis, which presumably you didn't have.  Chlamydia and gonorrhea, the only STDs that might cause your girlfriend's symptoms, cannot be acquired orally and transmitted genitally.

HHH, MD
Member Comments (4)

by JohnnyV, Aug 31, 2005 12:00AM
To: MD.-HHH
Dr. H,

Is it possible to get syphilis on your penis if someone performed oral sex on you? And if so, what's the maximum amount of time it takes for the chancre to appear on the penis? Is it sensible for a syphilis chancre to appear 4 months after the transmission? The worrisome sore in question is a small round spot on a penis, with a white inside that then turned into a small red bump.

J

by JohnnyV, Aug 31, 2005 12:00AM
To: Jim_303
Hi,

Just wanted to tell you that I'm rooting for you. I hope everything turns out okay and your relationship weathers the storm.

J

by H. Hunter Handsfield, M.D., Aug 31, 2005 12:00AM
To: JohnnyV
Yes, syphilis transmission occurs by fellatio.  Not as common as by genital or anal intercourse, but fairly common.  Four months is a bit long, however.  But the standard advice applies:  people with genital lesions need to see a health care provider.  Your local public health STD clinic would be a good place.

HHH, MD
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