137 citations
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July 2004 in “Journal of The American Academy of Dermatology” Horizontally sectioned scalp biopsies are more reliable for diagnosing hair loss in women when three samples are taken instead of one.
25 citations
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June 2003 in “Journal of Investigative Dermatology Symposium Proceedings” Phototrichogram and hair diameter measurements are effective, noninvasive ways to assess hair growth and detect early hair loss, with the most common pattern being reduced hair density.
4 citations
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May 1989 in “Journal of the Royal Society of Medicine” Crohn's disease can cause hair loss before other symptoms appear.
August 2022 in “Our Dermatology Online” The conclusion is that examining the scalp closely and checking for iron levels and thyroid issues is key to understanding chronic hair loss in women.
Serum iron levels should be checked, not just hemoglobin, for chronic diffuse hair loss in women.