A few months ago I had unprotected vaginal\anal sex with a woman. Within a few days I had a lot of discomfort in my urethra and minor, clear discharge with no odour. I'm in the UK so went to the local GUM clinic, I've been tested for everything under the sun and all tests are negative. One swab test did show some pus cells so I was treated with Ofloxacin for 2 weeks which made no difference to my symptoms.
In the end the clinic had done all the tests they thought relevant so I went to a private clinic to see if they offered any additional testing. So I was screened for all manner of things and the only test to come back positive was gardnerella. I know my local clinic doesn't screen men for this because (apparently) there's no benefit in treating men, it actually says that on their site.
Finally my questions are (a) could you expand on why screening men may be seen as pointless, (b) given every other test is negative would it be safe to assume gardnerella is a likely cause of my symptoms, (c) given I've now had 3 months of these symptoms would I require a more intensive treatment regime? I believe typically in the UK treatment is a single, large dose of metronidazole but this appears to be for more "superficial" infections.
Thanks.