At my H.S. school, the majority of the girls knew about the boy’s school & sports physicals involving a genital & hernia exams. Actually, there several ways the girls found out the details of our exams.
First, many heard directly from their brothers, boyfriends or just guy friends that we had to drop our pants & underwear then the doctor checked our penis, balls and coughed for the hernia part of the exam. For me, my sister knew exactly as she watched our family doctor pull my underwear down and look at my dick, feel my balls and then cough test. Second, the school always posted a copy of letter sent home to our parents. It gave a detailed description of the entire physical: vitals, heart ending with a hernia check. I don’t remember exactly, but a portion of the letter stated something like “your son will be required to lower his pants & underwear for a genital and hernia exam”. Finally, the nurses had members from the school’s “future athletic trainer & medical professional club”assist them during the exams. Usually, more girls than guys volunteered they usually checked people in & out plus recorded information. Normally, the room was really quiet so they would hear the doctor telling us to “ drop your pants” and “turn and cough.” Depending on their positioning, they also had a view of the privacy screen area witnessing guys letting their pants fall to the floor.
The boys physicals, everything but Fall sports given during school hours usually in the morning. For me, it was every year from 9th grade to 12th grade late September or early October.
Then some of the girls would try to embarrass us guys by joking about us having to “dropping our pants” or the "cough test.” Of course, leading to more jokes bout having having another man feeling our dicks and balls or getting groped.