36 citations
,
December 2016 in “Journal of The American Academy of Dermatology” The normal range for the hair pull test is 2 hairs or fewer, and washing or brushing hair before the test does not affect the results.
33 citations
,
August 2018 in “Facial Plastic Surgery Clinics of North America” The document explains hair biology, the causes of hair loss, and reviews various hair loss treatments.
31 citations
,
December 2010 in “Journal of the American Academy of Dermatology” Loose anagen hair syndrome is caused by structural abnormalities in the hair follicle's inner root sheath.
30 citations
,
November 2013 in “PLOS ONE” Androgen receptor signaling causes early aging of cells important for hair growth by damaging their DNA.
29 citations
,
September 2020 in “International Journal of Molecular Sciences” The document concludes that freeze-dried platelet-rich plasma shows promise for medical use but requires standardization and further research.
29 citations
,
May 2010 in “Annals of Pharmacotherapy” Finasteride may help some women with hair loss, but better options exist.
28 citations
,
March 2010 in “Histochemistry and cell biology” Skin cells can help create early hair-like structures in lab cultures.
26 citations
,
May 2019 in “PLOS ONE” Hair loss patients have different microbes in hair follicles, possibly affecting hair loss.
26 citations
,
January 2013 in “BMJ Open” Severe baldness on the top of the head is linked to a higher chance of heart disease, especially in men under 60.
26 citations
,
September 1990 in “Ophthalmology” The study found no common cause for a girl's crystalline cataract and uncombable hair, suggesting their co-occurrence might be coincidental.