anagen
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(ăn'ə-jĕn')
n.
n.
The growth phase of the hair cycle during which new hair is formed.
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In the cycle of hair growth, the period of active production by the hair follicle.
- a. defluxion, a. effluvium — loss and abnormal formation of hair that is in the anagen stage of growth; occurs with antimitotic drugs, endocrinopathies, metabolic disorders.
- a.–telogen ratio — a comparison of the numbers of anagen and telogen hair bulbs, which is an indication of the percentage of active hair follicles. Normally, the majority should be in anagen.
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American Heritage Stedman's Medical Dictionary
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company.
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