Actually, it depends.
A buzz cut (shaved to the head, or high and tight) is no big deal in and of itself unless you live in an area of the country where it might conote a poiltical or social stance, especially in younger age groups. A buzz cut may mean something different in San Francisco, California than in Birminghan, Alabama. As far as medicine goes, we've seen every hair style come and go, and come around again...