[Question #3558] Anxious after oral exposure - discharge
88 months ago
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H. Hunter Handsfield, MD
88 months ago
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Welcome to the forum and thanks for your question. I'm happy to comment, but in person examination is just about always more reliable than a distant opinion like this, especially when qualfied experts are involved, like typical UK NHS GUM clinics. If there is any conflict between me and the clinic on diagnosis, further evaluation or treatment, I would rely more on them.
Your symptoms are a bit confusing: discharge with onset ~2 weeks after exposure is consistent with NGU, as ultimately diagnosed at the GUM clinic, pain is uncommon in NGU. Herpes is a possiblity, but when it causes NGU, uusally there also are external blisters or sores. Or perhaps a non-STD viral infection, e.g. adenovirus. Adeno isn't an STD in the usual sense, just a cold virus that happens to also have predilection for the urethra. This would be even more likely if you also had typical cold symptoms at the time, e.g. sore throat, nasal congestion, or conjunctivitis (pink eye). Failure of your symptoms to improve with the first few days of doxycycline tends to support a viral cause, such as herpes or adenovirus -- so this is something to discuss with the clinic.
The most important lab test result so far is the negative gonorrhea test, twice. Trimethoprim could affect gonorrhea testing, but if it did so, it also would have prevented or cured the infection in the first place, so the negative result in presence of discharge is strong evidence the discharge was not due to gonorrhea. Also, gonorrhea discharge, with painful urination, almost always starts within 5 days of exposure. The other tests in "Profile 3" just wasted money. Most of them are not carried at all in the oral cavity and therefore cannot be transmitted by oral sex; and most are non-pathogens, causing no disease at all. Chlamydia obviously is disease causing, but it's uncommon in the oral cavity rarely if ever transmitted by oral sex. In any case, these negative results also support the possibility of viral urethritis of some sort.
Syphilis testing is reasonable, but the risk was exceedingly low and your symptoms don't suggest it. Heterosexually transmitted syphilis is currently quite rare in the UK, and although oral sex is a possible transmission route, it's not a common one. There has never been a proved case of HIV transmission mouth to penis, so that's almost impossible in this situation. In any case, the standard syphilis and HIV blood tests are conclusive any time 6 or more weeks after exposure; you don't need to wait 3 months. And there is no point in testing again at any time for gonorrhea and chlamydia.
My suggestion is that you return to the GUM clinic, especially if your symptoms are continuing, and follow their further advice. You could print out this thread as a framework for discussion about next steps.
I hope these comments are helpful. Let me know if anything isn't clear.
HHH, MD
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88 months ago
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![]() |
H. Hunter Handsfield, MD
88 months ago
|
![]() |
H. Hunter Handsfield, MD
88 months ago
|
88 months ago
|
![]() |
H. Hunter Handsfield, MD
88 months ago
|