How long does it take to go completely bald?

Answer 1

Most balding men do not go completely bald (Norwood 7), but those who do, are usually terminally bald at 25, even earlier. If hair loss begins at 17-19, going completely bald takes usually less than 5 years. One can even go bald in less than a year, but it is rare.

By Alopecia Areata one can go bald (Alopecia Totalis) overnight.