October 2019 in “European Journal of Dermatology” The boy's hair and skin color differences are due to a pigmentation disorder.
January 2018 in “International Journal of Medical Reviews and Case Reports” A 6-year-old girl with head lice developed scarring hair loss but improved with treatment.
May 2017 in “Journal of the American Academy of Dermatology” Monilethrix is a rare, inherited condition causing fragile hair and hair loss, with no cure but some treatments may help.
September 2016 in “Journal of The American Academy of Dermatology” The girl has a genetic hair condition causing thin hair since childhood.
April 2016 in “The journal of investigative dermatology/Journal of investigative dermatology” The back of the scalp has more nerve fibers than the front, which may explain why some people feel more sensitivity there.
April 2016 in “Actas Dermo-Sifiliográficas” The document concludes that a unique target-like hair regrowth pattern in alopecia areata may be more common than thought and should be properly identified.
March 2012 in “Journal of The American Academy of Dermatology” Dermoscopy helps diagnose different hair loss conditions, and characteristics vary among ethnicities and individual cases.
January 2012 in “Chinese Journal of Aesthetic Medicine” Increased androgen receptor expression in certain hair follicle areas may cause male pattern baldness.
The document concludes that Loose Anagen Hair Syndrome is a benign condition where hair is thin and easily pulled out, often improving with age.
January 2014 in “Medical Innovation of China” Androgen receptor differences may contribute to hair loss in AGA patients.