"Lost Soldier" has related to us his military physicals in Brussels.
He did not say when it happened but I assume that it was at the time of the mandatory military service
My experience a lot of years ago in the last 60's in France is a little similar
We had to report to a military pre-induction center for draft physicals. They were pretty thorough as we expected in fact and very undressed too.
At the beguinning of the second morning after a previous day for different test about knowledges and skills and filling a lot of papers and forms for a folder, we were gathered by group of about 30 young men of 18 aged and conducted by two non commissioners officers in a shower room, it was like a shower gang on the back of the room and on each side for the first part of the room there was benches. We were instructed by a loud voice to remove all our clothes quickly and to line up stark naked in front of the second part of the room where were the showers gang.
So very soon, we were 50 young men butts naked waiting the instructions of a non commissioner officer. We had to take a shower very close to each other, sometimes with the nose in the butts of the guy in front when we bend over to soap our legs and feet if we were not enough lucky to be in the first row . But it was an order and it was like the first part of military life.
After that we dressed again and we were send to the first stage of the building where we had the physicals. We entered in a locker room and we were told to undress completely including our brief our watch and all jewelleries, so once naked we lined up in the corridor annd we went from one room to an other for all the medical stations, we were weigthed in the nude which could be logical and expected but we were also reading letters for the eye's test in the nude which was more unexpected or peeing to give a urine sample in the nude under the supervision of a male nurse who was watching if we did not try to cheat. The last station was for the genitals examination with palpation of the testicles, retractation of the foreskin and other inspections of this genital area, we had also in that room a visual inspection of our anus area which seemed to last very long while bending over and spreading wide apart our butts waiting that the military doctor gave us the smack which meaned that we could stand up again and to finish sitting on all fours on an examination table for my first DRE without any explanation. It was strange for me as I guess for almost all of the guys since the doctor did not explain why he performed the DRE, I learned the explanation a few years after by a doctor at his office when he did it again.
There was no women present at any stations or in corridors, no women secretaries nor female nurses or doctors but there was a lot of military men, several medics, nurses and doctors and some non commissioners officers and a few officers who came to look at the process. Some were only walking through the corridors while we were lining up in the nude, others were supervising us even by coming in the examination rooms. It was a group exam so depending on the stations we were at least 10 or more if it was in a huge room like for the weigh-in or less than 10 but always at least 5 at the same time, even for the last part with the DRE where we had no privacy
It lasted about three hours before we could dress again after having paraded in the nude all the morning
I was shy towards nudity, so it was an embarrassing experience but I had to come two more times at military physicals because I was not declared fit the first time but postponed for medical reasons which were not enough serious to be declared unfit. Like I was a student at university they had the time before taking a decision, so I came two more times on the following years and eventually I was declared fit for military service! I was lucky to have been examined three times in that way. I was less shy towards nudity after that .