้how to apply scholarship in medical school in USA?

Search the Internet for American scholarships for foreign exchange students.

Look on the university website most US universities have information about that kind of stuff on there.

Medical school in the US can be very hard to get in for both foreigners and US citizens so good luck. :)

US medical schools do not offer any kind of scholarships.

US medical schools accept very few international students. For most schools less than 10 international students each year. Some do not accept any international students at all.

Those that do get in usually have a 4 year bachelor degree from an US university.

Congratulation to you and your son. I know you must be proud of him. I don't think I can be of much help to you except to say maybe try his university guidance counselors Another option is talk to doctors who have graduated from schools in America. I know I use Bumrungrad Hospital and the three doctors I deal with all graduated from schools in America, one from UCLA and another from Michigan State University. Good luck chok dee.

He won't be getting one, sorry

Few American medical universities accept foreign students at al; none offer them scholarships. If you can't pay, he can't go.