TLDR Alopecia areata incognita causes widespread hair loss without patches and needs a scalp biopsy for diagnosis.
Alopecia areata incognita, first described by Rebora in 1987, was a form of alopecia areata marked by diffuse hair shedding without the typical patchy hair loss. The prevalence of this condition was unknown, and diagnosis typically required a scalp biopsy.
150 citations,
April 2008 in “Journal of The American Academy of Dermatology” Scalp dermoscopy is good for diagnosing a type of hair loss and helps choose the best spots for biopsy.
42 citations,
January 2008 in “Dermatology” Dermoscopy effectively distinguishes between acute total hair loss and other types of female hair loss.
59 citations,
January 2002 in “Dermatology” A new type of sudden, complete female hair loss was found, with most patients fully recovering within 6 months without needing steroid treatment.
60 citations,
January 1987 in “Dermatology” Alopecia areata may appear differently depending on the individual's type of hair loss and scalp condition.
April 2019 in “International journal of research in dermatology” A child with rough nails also had hair loss and allergies.
