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Dermatol Ther. 2017 Jan;30(1). doi: 10.1111/dth.12415. Epub 2016 Oct 6.

Prevalence of hair shedding among women.

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Department of Dermatology and Venereology, University of Rome "G.Marconi", Rome, Italy.
Department of Applied Biology, Inc, Irvine, California, USA.
Department of Dermatology, New York University Langone Medical Center, New York City, New York, USA.
Department of Medicine, University of Melbourne, Victoria, Australia.
University of California, Irvine, California, USA.
Department of Dermatology and Venereology, University Hospital Center "Sestre milosrdnice", Zagreb, Croatia.


Hair shedding in female patients is a frequent complaint in dermatological, endocrinological, and gynecological consults. Previously, the Sinclair Hair Shedding Scale was developed to assess normal versus excessive hair shedding in female pattern hair loss (FPHL) subjects. However, the prevalence of hair shedding in females not suffering from FPHL is unknown. To gain better understanding of hair shedding in the general population, we recruited 300 subjects visiting a public hospital for conditions other than alopecia. Of the 300 subjects recruited, 263 did not suffer from FPHL. Among those subjects, approximately 40% reported experiencing excessive hair shedding (as defined by the Sinclair Hair Shedding Scale) on hair washing days. In comparison, in our subject population, approximately 60% of subjects with FPHL reported excessive hair shedding on hair washing days. To best of our knowledge, this is the first study to quantify the prevalence of hair shedding in women. While, no treatment currently exists for this condition, we hope that this study would encourage physicians and researchers to address this frequent concern.

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