Fig. 2. Trichoscopic findings of localized hair loss. (A) Patchy alopecia areata: exclamation mark hairs (yellow arrow), yellow dots (yellow arrowhead), black dots (red arrow), broken hairs (red arrowhead). (B) Patchy alopecia areata: proximal tapering hairs (yellow arrow), short vellus hairs (yellow arrowhead). (C) Trichotillomania: trichoptilosis (yellow arrow), pointed hairs (yellow arrowhead), black dots, and broken hairs with different lengths. (D) Tinea capitis: septate hyphae hairs (yellow arrow), corkscrew hairs (yellow arrowhead), comma hairs (red arrow). (E) Primary cicatricial alopecia: diffuse white area (dotted circles), predominance of single hair (yellow arrows). (F) Primary cicatricial alopecia: fibrotic white dots (dotted circles), tufted hairs (yellow arrow), perifollicular scales (yellow arrowhead), diffuse erythema.