Health Dictionary
Reliable, easy-to-read patient information on common medical conditions — written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.
Hamilton-Norwood scale
Introduction
The progression of male pattern baldness is generally classified on the Hamilton-Norwood scale, which ranges from stages I to VII.
Synopsis: This is the measurement scale as it relates to Male Pattern Hairloss First introduced by Dr. James Hamilton in the 1950s and later revised and updated by Dr. O’Tar Norwood in the 1970s.
For a more comprehensive guide visit:
External links
- Norwood OT: Male Pattern Baldness: Classification and Incidence. South M J 1975, 68:1359-1365.
- Drawing of the different values and their associated HN-scale values
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]