"Going white overnight," is feature of:: (A) Vitiligo, (B) Alopecia areata, (C) Anagen effluvium, (D) Albinism
Answer is B. Ans. b. Alopecia areataAlopecia areata typically spares white or grey hair.Hence, if alopecia areata progresses rapidly; it will lead to this phenomenon called "going white overnight" as in a person with a mixture of grey and pigmented hair only grey hair is spared.