In alopecia areata,seen is -: (A) Exclamation mark hair, (B) Scarring, (C) Fungal infection, (D) Traumatic
Answer is A. Alopecia areata is characterized by exclamation mark hairs. In this hairs fracture at their distal end and taper proximally to a pencil point giving them the appearance of an exclamation mark Page 240 Ref Harrison20th edition pg 1234