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Previous Volume 358:533-534 January 31, 2008 Number 5 Next

	Since this article has no abstract, we have provided an extract of the first 100 words of the full text and any section headings.

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To the Editor: In the Clinical Practice article on hair loss in women by Shapiro (Oct. 18 issue),¹ the assertion that "the yield of testing [for hormonal causes of female-pattern hair loss] is expected to be low in the absence of other features suggesting androgen excess" is not supported by the cited series of patients with female-pattern hair loss.² Although the "majority" of patients in this series had normal serum androgen levels, 42 of 109 subjects had hyperandrogenism, as defined by an increase in testosterone, non–sex hormone–binding globulin-bound testosterone, dehydroepiandrosterone sulfate (DHEAS), androstenedione, or dihydrotestosterone.² In 2 of 44 patients, . . . [Full Text of this Article]

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