Other dermatologic features of atopy include xerosis, ichthyosis / palmar hyperlinearity (ie, more prominent skin lines on the palms), keratosis pilaris, an infraorbital skinfold (Dennie-Morgan fold), thinning of the lateral eyebrows (Hertoghe sign), wool intolerance (irritation and itching triggered by skin contact with wool), white dermographism (vasoconstriction, causing whitening of the skin in response to scratching), and increased transepidermal water loss (in nonaffected as well as affected skin).