69 citations,
March 1993 in “Archives of Dermatology” The document says there are five types of hair loss conditions and different causes, including drugs.
November 2001 in “CRC Press eBooks” Hair loss from telogen effluvium happens when a disturbance or imbalance causes hair to fall out prematurely.
40 citations,
May 2010 in “Australasian Journal of Dermatology” Chronic hair shedding may be caused by less variation in hair growth times and might stop on its own after several years.
144 citations,
July 2002 in “Clinical and Experimental Dermatology” Telogen effluvium is a common type of hair loss that can resolve on its own or become chronic, with treatment depending on early diagnosis.
67 citations,
November 2002 in “Journal of The American Academy of Dermatology” The document concludes that careful evaluation is key to diagnose and treat women with hair loss, with tests for thyroid, iron, and hormones as needed.