Dear Drs,
I am a 31 yo M. 10 months ago, I started dating a girl (my current GF). 3 months later, after we made sure of our feelings, we decided to go get both tested for STDs (Including HIV) and both results came negative (neither one of us slept with anyone during the 1st 3 months of dating) and we started having unprotected sex considering that we are exclusive with each other. 10 weeks after we started having unprotected intercourse, I had a pimple on my groin while she did not have anything on her vulva. I went to the dermatologist and he told me its mulloscum (confirmed with biopsy). I had 2 more treatment sessions as I had 2 more similar lesions later (on 2 different time points). Now it is gone. This thing created a lot of mistrust in the relationship because my GF keeps wondering where did I(me) get it from and even myself is wondering the same. She has never had it. Considering that we are monogamous and our tests last year were negative, do I need to repeat STD testing?
What are the possible sources of Mulloscum in this case?
Thanks,
OZ