18 citations,
June 2008 in “Archives of Dermatology” Men typically shed about 10 hairs in 60 seconds, and this amount doesn't increase with age.
63 citations,
October 2005 in “Archives of Dermatology” Shorter, thinner hairs indicate AGA, while longer, thicker hairs suggest CTE; counting and measuring shed hairs helps diagnose hair loss type.
2 citations,
March 2004 in “Journal of the American Academy of Dermatology” The 60-second timed hair count is a reliable and simple way to measure hair shedding at home, showing older women tend to shed more hair than younger women.
May 2012 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” A simple method using the wash test and dermatoscopy can help differentiate between two hair loss conditions, androgenetic alopecia and chronic telogen effluvium.
August 2006 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” A simple wash test can help differentiate between two types of hair loss, and dermatoscopy should be used for further clarification.