do you know how hard it is to not get a boner when going through puberty?
he is probably gonna get one when the doc is examining
Precisely why I never let a doctor take a look down there.
It is just far too awkward.
If its a gash, and if he does it right, keeps it sterile and lets it scab over, it should be okay.
Seeing as he left suddenly, he's probably gone to a doctor. At least he will be commended for doing the right thing in regards to hygiene and immediate damage control.