Alopecia is an involuntary loss of hair usually in the scalp that may occur anywhere over the body.
Scarring alopecia is severe inflammation of the hair follicle result in irreversible damage.
Non-scarring alopecias are reversible.
Alopecia may be abrupt or gradual in onset.
Most common causes include androgenic alopecia (male & female pattern baldness) & alopecia areata.
History should be reviewed for medications, severe diet restriction, vitamin A supplementation, thyroid symptoms, concomitant illness & stress factor.
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Blume-Peytavi U, Blumeyer A, Tosti A, et al. S1 guideline for diagnostic evaluation in androgenetic alopecia in men, women and adolescents. Br J Dermatol. 2011 Jan;164(1):5-15. doi: 10.1111/j.1365-2133.2010.10011.x. PMID: 20795997
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Donovan J, Goldstein BG, Goldstein AO. Treatment of androgenetic alopecia in men. UpToDate. https://www.uptodate.com. Feb 2019.
Kanti V, Messenger A, Dobos G, et al. S3 – European Dermatology Forum guideline for the treatment of androgenetic alopecia in women and in men. European Dermatology Forum. https://www.edf.one. 7 Jul 2017. Accessed 15 Oct 2019.
Kanti V, Messenger A, Dobos G, et al. Evidence-based (S3) guideline for the treatment of androgenetic alopecia in women and in men - short version. J Eur Acad Dermatol Venereol. 2018 Jan;32(1):11-22. doi: 10.1111/jdv.14624. PMID: 29178529
Manabe M, Tsuboi R, Itami S, et al. Guidelines for the diagnosis and treatment of male-pattern and female-pattern hair loss, 2017 version. J Dermatol. 2018 Sep;45(9):1031-1043. doi: 10.1111/1346-8138.14470. PMID: 29863806
McMichael A. Female pattern hair loss (androgenetic alopecia in women): Pathogenesis, clinical features, and diagnosis. UpToDate. https://www.uptodate.com. Jan 2019. Accessed 15 Oct 2019.
McMichael A. Female pattern hair loss (androgenetic alopecia in women): Treatment and prognosis. UpToDate. https://www.uptodate.com. Sep 2019.
Messenger AG. Alopecia areata: Clinical manifestations and diagnosis. UpToDate. https://www.uptodate.com. May 2019.
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