Frequency of the Types of Alopecia at Twenty-Two Specialist Hair Clinics: A Multicenter Study
January 2019
in “
Skin appendage disorders
”
TLDR The most common hair loss type at specialist clinics is androgenetic alopecia, especially in younger men, followed by alopecia areata and telogen effluvium, with differences seen across regions.
In a retrospective study involving 2,835 patients across various continents, the most common type of non-cicatricial alopecia diagnosed at specialist hair clinics was androgenetic alopecia (AGA), accounting for 37.7% of cases, with a higher frequency in males who presented at a younger age (33 years) compared to females (45 years). Alopecia areata (AA) was the second most common, with a median age of 32 years and a higher occurrence in females. Telogen effluvium (TE) was third, with a clear female predominance. Frontal fibrosing alopecia (FFA) was the most frequent cicatricial alopecia. The study also noted significant geographical differences in the frequency of certain alopecias, such as more AA in Europe and more traction alopecia in Africa. The findings, while not reflective of the general population, provide insight into the frequency of hair disorders among patients seeking specialist care.
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