Hamilton-Norwood scale
Encyclopedia
The progression of male pattern baldness is generally classified on the Hamilton-Norwood scale, which ranges from stages I to VII.
This measurement scale was first introduced by Dr. James Hamilton in the 1950s and later revised and updated by Dr. O'Tar Norwood in the 1970s.
This measurement scale was first introduced by Dr. James Hamilton in the 1950s and later revised and updated by Dr. O'Tar Norwood in the 1970s.