Hi there,
I've actually written in before on this subject. You can find my previous post here:
http://www.medhelp.org/posts/STDs/Type-1-Genital-Herpes---Could-I-be-infected/show/1365317?personal_page_id=1822923#post_6244870
I'm following up for a related symptom/issue. There is a small pimple-like white bump on the upper shaft of my penis, on my circumcision scar tissue. I noticed this just today - it is certainly a new development and was not there yesterday or, for that matter, this morning. I would assume it has puss in it due to its white colour. There is no pain, no tingling sensation. Moreover, at this stage, it's hard to say whether it will crack open (erupt) or simply subside and go away, although I would suspect (and hope) the latter.
If you reference my earlier post, I've come to regard the bumps described there as possibly being benign 'Fordyce spots", although they have not been formally diagnosed as such. The white bump in question in this post seems to have appeared amongst the other bumps which I had inquired about in that post. It's worth noting that those bumps have been there for quite some time with no noticable change and, per Dr. Hook's previous advice and my Doctor's own examination, I assume they're nothing STI/STD related. It's also worth noting that there is just the one white bump and not multiples at this time.
Nothing has changed in my personal circumstances since that post with the exception that I had protected sex roughly three weeks ago with a woman. I have no reason to believe she has an STD/STI. I should also note that I did masterbate this morning with moisterizer cream, which could have irritated the skin and may be the cause.
So, I'm reaching out the community to get comments on the following: Does this resemble something like an STI, specifically herpes, or something more benign? Is it common for white bumps like the one described here to appear on a penis from time to time but not be STI/STD related, but rather something benign like a subcutaneous cyst?