24 citations,
October 1994 in “Fertility and Sterility” People with hair loss may have different levels of certain hormones due to changes in hormone processing.
23 citations,
March 2001 in “Clinics in dermatology” Alopecia areata involves immune response and gene changes affecting hair loss.
17 citations,
July 1994 in “Journal of Dermatological Science” The cause of alopecia areata is likely a mix of genetics, immune system issues, and environmental factors, with more research needed to understand it fully.
4 citations,
January 2012 in “Springer eBooks” The document concludes that signs of male and female pattern baldness include uneven hair thickness, yellow spots, skin discoloration around hair follicles, more thin and soft hairs, and many hair follicles with just one hair.