There are several trip to the doctor themed threads circulating at LPSG, and I dont recall ever having posted a reply to one. Like other posters have mentioned, the doctors I have seen have always been professional and appropriately focused on the matter at hand. Nonetheless, I do have a few experiences to share.
My doctor is a gay man who I have seen for a long time. Being in good overall health, I dont see him very often. Only in the past few years has he had any reason to see me without my pants, now that I am in the good habit of going in for an annual physical. We have a well-established rapport, and he has offered carefully worded remarks alluding to my package, such as a reference to me being well-built during the genital exam and a statement that as to how I must be proud of all my parts. I always take his comments in the spirit of a friendly bedside manner.
Also, years ago, when I was right out of college and living in another city, I saw a doctor at one of those doc in a box no-appointment-necessary clinics about a sore near the head of my penis, because I was concerned that it might be a STD. The physician was an extremely nice older gentleman, with a fatherly demeanor and an eastern European accent. He confirmed for me that the sore was not related to a SDT, but rather from friction from either too much or too rough sex. I was flattered and a little surprised when he went on to say that he could see that I was a handsome young man with large genitals and that he could understood why I was so sexually active, but cautioning me to take it easy for a spell.
And, finally, like a lot of guys out there, when I was a teenager, I got a huge boner in front of the doctor during a physical required for participation in athletics. Instead of our usual family physician, the doctor I saw was someone else who was filling in for a few days. He was relatively young and reasonably nice looking, which I am sure contributed to my grand stand. Of course, I was a little embarrassed, and, of course, he assured me it happened all the time and I should not be concerned about it. To help ease the moment, he playfully and politely offered that it was very large and that I should feel lucky.