Balding at 14 Years Old

I work in a school and recently met an 8th grade student, so 13 or 14 years old, who had very advanced male pattern baldness. It had clearly progressed in the male pattern, and he was somewhere around a Norwood 5 or 5A. There was a large bald circle on the crown, and what remained of the forelock was very thin. My question is: Is it possible for MPB to occur that early without the presence of a disorder, or does balding at such a young age reflect some underlying problem beyond the simple genetic predisposition for male pattern baldness?

Androgenic alopecia (AGA) or Male Pattern Balding (MPB) starts with puberty when the hormones change in the young man. In general most MPB starts around late high school/ early college years. I suppose a 14 year old going through puberty can have signs of MPB. I have seen 16 to 18 year old boys with complete Norwood 5/6 balding.