Can a doctor tell if I masturbate?!

Can a doctor tell if I masturbate?

I'm a male, and masturbate sometimes, but unfortunately, have irritated my penis so that there is some slight bruising on its head, just a bit of discoloration, and have a physical tomorrow. I was wondering if my doctor would notice this, and if he would bring up such a topic.

3 weeks ago
As a postscript, would he tell my parents if he could infer that I do indeed masturbate???

He may not even need to look at your penis.. but if he does he will automatically assuem the cause and say something casual about it ... like "better take it easy in future"... and he will be most unlikely to inform your parents because it is not an illness that requires any treatment what so ever...and he will probably just say, if you are healthy that "you are a healthy teenage boy".

So chill out.. and ask him anything you want to know because that is your best opportunity.