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bands of discoloration of hair (reddish, blond, or gray, depending on original color) resulting from fluctuations in nutrition characteristic of kwashiorkor and in diseases with protein depletion such as ulcerative colitis.
A peculiar change in hair color in which the hair becomes discolored in a band perpendicular to its long axis. This is seen in kwashiorkor and indicates a period of severe malnutrition.
See also: sign