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The
Ogata male pattern baldness classification system
In 1953 Ogata published a detailed pattern baldness classifiaction
system based on the study of Janapese men. He classified six basic
hair
loss
development types shown below. The classification system is somewhat
different from classification systems produced based on Caucasian
men suggesting the devleopment of pattern baldness in Japanese
men may be distinct from Caucasians.
The first column shows a normal hairline for Japanese men according
to Ogata. The second, third, and fourth columns respectivly represent
early, intermediate, and late stages of pattern baldness.
The
Ogata male pattern baldness classification system references
- Bouhanna P.
Multifactorial classification of male and female androgenetic alopecia.
Dermatol Surg. 2000 Jun;26(6):555-61.
PMID: 10848937
- Ogata T. Development of patterned
alopecia. Sogo Rinsho 1953;2:101-106.
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