What is premature achromotrichia?
Graying of hair also called canities or achromotrichia occurs with normal aging. However, the age at which it occurs varies in different races. PGH is defined as graying of hair before the age of 20 years in Caucasians and before 30 years in Blacks.[1] Definition of PGH with respect to the Asian population is lacking.
Graying of hair also called canities or achromotrichia occurs with normal aging. However, the age at which it occurs varies in different races. PGH is defined as graying of hair before the age of 20 years in Caucasians and before 30 years in Blacks.[1] Definition of PGH with respect to the Asian population is lacking.