Editorial: Advances in evaluation and management of hair loss disorders

Abstract

Editorial on the Research Topic Advances in evaluation and management of hair loss disorders Alopecia areata (AA) is a non-scarring hair loss disorder which, depending on the extent of the disease, presents with focal patches of hair loss; complete loss of scalp hair, known as alopecia totalis (AT); or complete loss of scalp, facial and body hair, known as alopecia universalis (AU) (1). Less commonly AA may present as a band-like area on occipitotemporal scalp called ophiasis or sparing temporal and lower occipital scalp called sisaipho (ophiasis spelled backward). There are tools to measure extent of involvement include the "severity of alopecia tool" (SALT) score which is calculated by measuring the percentage of hair loss in each of 3 areas of the scalp: vertex (40%), right profile (18%), left profile (18%), and posterior (24%) (2) and the alopecia density and extent (ALODEX) score which combines both extent and hair density, usually calculated with a tablet (3).Approximately, 34-50% of patients with AA recover within a year without need of a treatment, however many patients experience relapsing or remitting disease, 10-35% of those progressing to either AT or AU (4).AA affects 2% of the general population, disproportionately affecting young people with an incidence peaking 20-24 years of age (5); its incidence is higher in females than males. Interestingly, increasing number of cases are seen in certain areas of the globe such as in Central sub-Saharan Africa and Western Sub-Saharan Africa (6).AA is not a simple cosmetic disease, it is a medical condition with substantial financial burden for patients who must deal with higher plans, pharmacy, and out of pocket expenditures (4). Mesinkovska et al. have shown that patients spend on average $2,000 per year in wigs, hair pieces and psychotherapy visits alone (7). AA decreases health related quality of life, in fact, globally, there is a burden of 7.5 years lost due to AA, with the highest burden in high income North America, followed by Southern Latin America (6). In fact, AA is associated with 70% lifetime prevalence of psychiatric disorders such as anxiety and major depression (8) and many as 78% of adolescents have at least 1 lifetime prevalence of psychiatric disorder (9). Patients consider AA as a daily challenge and burden, with most people rating AA as a moderate or serious burden. As a matter of fact, the burden is significant enough to spend on average 10.3 h per week concealing hair loss (10).AA is associated with higher incidences of other autoimmune diseases such as thyroid disease, pernicious anemia, and celiac disease and other autoinflammatory disease such as atopic dermatitis, lupus erythematosus, psoriasis, asthma, and allergic rhinitis (6,11).