Iron deficiency in female pattern hair loss, chronic telogen effluvium, and control groups

    Elise A. Olsen, Kate E. Reed, Patrick B. Cacchio, Leslie Caudill
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    TLDR Iron deficiency common in women, not always linked to hair loss; more research needed.
    This document is a compilation of several studies that aimed to investigate the relationship between iron deficiency (ID) and female pattern hair loss (FPHL) and chronic telogen effluvium (CTE). The studies found that ID is common in women but not necessarily increased in patients with FPHL or CTE compared to control subjects. However, there may be a higher prevalence of ID in premenopausal women with hair loss. The studies suggest that more definitive studies are needed to evaluate whether correction of ID in women with hair loss actually affects hair growth.
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