TLDR Trichoscopy effectively differentiates Androgenetic Alopecia from Telogen Effluvium.
The study compared trichoscopic characteristics of Androgenetic Alopecia (AGA) and Telogen Effluvium (TE) in 80 patients (40 with AGA and 40 with TE) using a Dermlite DL4 dermoscope. In AGA, the fronto-temporal zones showed significant hair shaft diameter variation, with miniaturized hair being the most common pattern. Other features included vellus hair (70%), yellow spots (57.5%), and peripilar sign (35%). In TE, common features were upgrowing hair (65%), vellus hair (32.5%), and 3 or more hairs per follicle (82.5%). The study concluded that trichoscopy is effective in differentiating AGA from TE, highlighting the need for further research to better understand TE.
1 citations,
June 2022 in “PubMed” Alopecia causes hair loss and should be treated early, especially scarring types where hair cannot regrow.
August 2018 in “Oxford University Press eBooks” The document's conclusion cannot be provided because the document cannot be parsed.
November 2016 in “대한피부과학회지” The document's conclusion cannot be summarized as it is not provided in a language I can understand.
4 citations,
July 2015 in “Case Reports in Dermatology” A woman with unexplained hair loss was found to have harmless skin tumors and a scarring hair loss condition, but the tumors didn't cause the hair loss.
January 2015 in “프로그램북(구 초록집)” 
43 citations,
August 2013 in “Pediatric Dermatology” Trichoscopy is good for diagnosing and monitoring hair and scalp problems in children but needs more research for certain conditions.
July 2013 in “DeckerMed Medicine” The document's conclusion cannot be provided because the document is not readable or understandable.
28 citations,
September 1998 in “Medical Clinics of North America” Most hair loss can be diagnosed with patient history and physical exam, and a few common types make up most cases.
