About a week ago, I noticed an unpleasant smell during masturbation, as well as a very small amount of stringy green-yellow stuff under my foreskin (I'm not circumcised). I determined that this substance was the cause of the odor.
This morning, I pulled back the foreskin completely (kind of uncomfortable, so not something I do a lot) and noticed a 1/4" lesion/sore on the inside of my rolled-back foreskin. There was a large glob of the yellow stringy substance attached loosely to the edge of the lesion, almost like it had been a scab at some point. I removed most of the large piece, but there are still small bits remaining.
There's no pain when I urinate, although there's very mild pain when I masturbate, so I think I'll knock that off until this is all cleared up.
I have not been sexually active in any way for 6 months (sigh) and the last girl I was with was completely clean. No injuries or illnesses, and no changes in any of my regular routines.
Never had anything like this happen in the past. Planning to see a doctor very soon, but must wait for insurance to kick in at my new job.
Thanks for your help. I can post pics if necessary.