My first genital exam (that I remember) was at the German "Musterung", a at that time mandatory physical exam before military service for all young men around the age of 18.
I remember sitting in the waiting room when a slightly older woman who worked there passed by with a smirk on her face looking at us young guys sitting there, presumably amused by what we were about to undergo.
I remember entering the exam room, seeing a young female assistant who looked me in the eyes and a relatively young male doctor.
I was told to strip down to my underpants right away, which I thought was crazy.. but I did it nonetheless.
I already felt naked at that point, since I knew those would be coming off too.
I was kind of pleasantly surprised at that time, that the assistant didn't look at me again throughout the entire exam.
After being told to walk across the room and doing some exercises, I was led into a separate room, so the assistant wasn't able to observe the exam, but she could hear everything that was said.
After being examined laying down I was told to stand up and pull down my underwear, facing the doctor.
He told me to cough and did the hernia check, while I was trying my best to not get an erection.
I was relieved when he didn't tell me to retract my foreskin, as I'm sure I would have at least experienced some blood flow in those regions..
Although I was very reluctant to the exam beforehand, I was strangely proud of myself afterwards and it felt kind of surreal to me, that someone had just looked at my genitals.
I was quite excited.
Nowadays I like to think of how it would have been if I was examined completely in front of the assistant..