I only once experienced an orchidometer measurement. When my mom took me to the pediatrician for my annual well-child exam just after my fourteenth birthday (1990), it was basically like all of the exams in previous years. The nurse who took my mom and me to the exam room told my mom that I should be in just underpants for the exam. Once I was undressed, the nurse then walked me down the hall for height and weight. After returning to the exam room, the doctor came in and examined me, usually talking to my mom instead of to me. But when he got to the usual part with me lying on the exam table where he would briefly pull the front of my underpants down, he had me lift my hips so that he could pull them down to the middle of my thighs and leave them there. He then pulled beads out of a drawer that I later learned were an orchidometer. He was holding the beads while he examined my testicles, but I didn't realize he was comparing size. All he said was, "just about 5." And then put the beads back in the drawer. He told my mom that I'd finally start catching up to the other boys my age, and then he pulled my underpants back up.
It all was very confusing for me, since he didn't explain any of it. When we got back to the car, my mom asked me what I thought. I shrugged and didn't say anything. At that point, she asked me if the reason I didn't like gym class was because I still had a "small peepee." I could have died. I didn't like gym class, because I was the shortest and slowest. But she had just given me something else to be worried about. She was trying to help. She explained that the doctor was using the beads to measure how big my testicles were, and since they had started growing, I'd catch up to the other boys soon. And though I heard the whole thing, I fixated on the "small peepee" part. He never used the orchidometer on me again, so I guess despite my still being basically hairless at my fifteen-year-old exam, I must have been progressing, because he told my mom I was "back on track." Of course, by my exam at sixteen, I had been successfully masturbating to ejaculation for a few months, and they both saw my pubic hair for the first time (a proud moment for me after such delay), at which point he said I had "caught up." That was my final visit to that pediatrician.