15 citations,
April 2003 in “Journal of dermatology” Alopecia areata causes hair loss due to an immune attack on hair follicles, influenced by genetics and environment.
2 citations,
September 2014 in “Journal of evolution of medical and dental sciences” Most HIV patients in the study showed skin and mucous membrane issues, with oral thrush being the most common.
January 2021 in “Indian pediatrics case reports” A child's hair loss after Kawasaki disease may help understand the disease's autoimmune causes.
Aluminum phosphide poisoning can cause horizontal nail grooves and hair loss.
11 citations,
November 2005 in “The Journal of Dermatology” A man's crushed thumb caused unusual horizontal nail ridges on all fingers of one hand.