John Libbey Eurotext

European Journal of Dermatology

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Low iron stores: a risk factor for excessive hair loss in non-menopausal women Volume 17, issue 6, November-December 2007

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L’Oréal Recherche, Clichy, FranceFax: (+33)1 47 56 82 21, U557 Inserm (UMR INSERM/INRA/CNAM), 5 rue du Vertbois, Paris, 75003 France
  • Key words: hair loss, non-menopausal women, serum ferritin
  • DOI : 10.1684/ejd.2007.0265
  • Page(s) : 507-12
  • Published in: 2007

Iron deficiency has been suspected to represent one of the possible causes of excessive hair loss in women. The aim of our study was to assess this relationship in a very large population of 5110 women aged between 35 and 60 years. Hair loss was evaluated using a standardized questionnaire sent to all volunteers. The iron status was assessed by a serum ferritin assay carried out in each volunteer. Multivariate analysis allowed us to identify three categories: “absence of hair loss” (43%), “moderate hair loss” (48%) and “excessive hair loss” (9%). Among the women affected by excessive hair loss, a larger proportion of women (59%) had low iron stores (< 40 µg/L) compared to the remainder of the population (48%). Analysis of variance and logistic regression show that a low iron store represents a risk factor for hair loss in non-menopausal women.