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The
Ebling - Rook female pattern baldness classification system
Ebling and Rook also developed a five stage classification system
for female pattern baldness. Unlike the three stage Ludwig classification,
Ebling and Rook took into account that women could have both a diffuse
form of alopecia and also a male pattern with recession of the frontotemporal
hair line.
The first two stages are essentially the same as the Ludwig system.
Type I shows perceptible thinning of the hair on the crown. Type
II shows pronounced rarefaction of the hair on the crown within
the area seen in type I. Type III. shows continued diffuse hair
loss in the region defined in types I and II, but also the initial
loss of hair from the frontotemporal hair line. Type IV shows a
continuation of this diffuse loss and frontotemporal recession until
by type V there is complete loss of hair on the top of the scalp
resembling a male pattern of baldness.
Types II, IV, and V are quite rare and generally occur in post
menopausal women. Hair loss in a male pattern in pre menopausal
women strongly suggests abnormal androgen production as can occur
in polyystic ovary syndrome and other conditions.
The
Ebling - Rook female pattern baldness classification system references
- Ludwig
E. Classification of the types of androgenetic alopecia (common
baldness) occurring in the female sex. Br J Dermatol. 1977 Sep;97(3):247-54.
- Hamilton
JB. Patterned loss of hair in man: types and incidence. Ana N
Y Acad Dermatol 1951:53;708-28
- Venning
VA, Dawber RP. Patterned androgenic alopecia in women. J Am Acad
Dermatol. 1988 May;18(5 Pt 1):1073-7.
- Camacho F, Montagna W. Trichology. Diseases
of the pilosebaceous follicle. S. Karger Publishers Inc. Farmington,
USA. 1998. ISBN: 3-8055-6672-7
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