Keratosis pilaris is a common condition producing greyish hard follicular plugs and red papules usually over the outer aspects of the upper arms and thighs. Less frequently it affects the cheeks and eyebrows. The skin feels rough at these sites.
It is very common in childhood and adolescence but gets less obvious in adulthood.
It may be associated with atopic eczema and ichthyosis vulgaris. The differential diagnosis on clinical findings is that of severe vitamin deficiency.
Last reviewed 01/2018