TLDR Both trichoscopy and folliscopy accurately diagnose telogen effluvium, but trichoscopy is easier and faster.
The study, involving 100 adult participants with telogen effluvium (TE), aimed to assess and compare the effectiveness of trichoscopy and folliscopy in diagnosing TE. The results showed that the presence of more than 5% new regrowing anagen hair is a definitive diagnostic sign of TE by both methods. Other signs such as empty hair follicles, single hair follicles, and peripilar halo were also found in TE patients. The study concluded that both trichoscopy and folliscopy are highly accurate and sensitive diagnostic tools for TE, but trichoscopy has the advantage of being easier and less time-consuming than folliscopy.
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