2 citations,
January 2017 in “Journal of Pigmentary Disorders” Genetics, stress, and health issues can cause early hair greying, which affects self-esteem, and there's no cure, only hair dye.
9 citations,
July 1995 in “Veterinary Clinics of North America: Small Animal Practice” The document concludes that hair loss in cats is caused by various factors, including allergies, mites, infections, and hormonal issues, with treatments varying accordingly.
81 citations,
February 2014 in “Clinics in dermatology” Demodex mites can cause skin issues, especially in people with weak immune systems.
2 citations,
June 2003 in “International Journal of Acarology” Researchers found a new mite species causing severe hair loss and skin problems in yellow-bellied marmots.
June 2020 in “Comparative medicine” NSG mice had the most mites, and genetic factors affect immune response and susceptibility.