Loss in weight to rapid

What else is he doing? is he running or working out a lot. those could cause him to lose weight quickly.

Going to the doc for a physical may not be a bad thing to do. I don't think it is severe enough to go to the ER though. Getting checked out is always a good thing.

Of course I will have the psychological perspective.

The thing that set off alarms in my head is the fact that he won't go to the doctor. If you are 19 years old, and you get a parasite or something and you start losing weight uncontrollably, fear will motivate you to go to the doctor.

We tend to associate eating disorders with women because 99% of the time that is what we read about and see. It is a fact that people (including doctors) consider medical reasons for aliments and psychological for women. Research in 2007 from Harvard Medical School suggests that up to 25% or adults (18 and older) with eating disorders are men.

Was he overweight as a child?
Has he been dieting (most common trigger)?
Is he involved with a sport that demands thinness?
Does he have a job that requires thinness?
Has he started dating someone new?

Even if he is eating fine, he could be bulimic, or using laxatives and eating to not alarm you. People with eating disorders are often very embarrassed about it, so you have to approach them directly like you would with an addict of any kind.

Men with eating disorders usually benefit more from one-on-one therapy as opposed to group therapy because more support groups are designed for women.

I was going to say drug use too, i know aolt of people who have lost weight due to drugs and he is 19 not wanting to go to the doctor maybe a fear of being caught and you finding out... sorry that had to be said but i hope yall figure it out..

Me to, I think Jodi hit the nail on the head, she said everything I as a doctor would have said, and then everything I would have expected her as a psychologist to say. Nice job Jodi.