October 2020 in “Revista médica sinergía/Revista médica sinergia” Alopecia areata is a complex condition causing hair loss, linked to genetics and immune system issues, and may be related to other autoimmune diseases; treatments vary in effectiveness.
February 2017 in “Medicina cutánea ibero-latino-americana” An 8-year-old boy with hair loss had hair regrowth and responded well to clobetasol propionate treatment.
Female hair loss is often hereditary and can be treated with medication, hair transplants, and lasers.
February 2014 in “Medicine - Programa De Formación Médica Continuada Acreditado” The document concludes that non-scarring alopecias can be reversed, but scarring alopecias cause permanent hair loss.
June 2007 in “Advances in Dermatology and Allergology/Postępy Dermatologii i Alergologii” Finasteride is effective in stopping hair loss and promoting regrowth in most men with mild side effects.