Related articles: Keratosis pilare
Definition
Keratosis pilaris is an alteration of the keratinization process that occurs at the level of hair follicles. It is characterized, in particular, by the formation of keratin plugs that occlude the orifices from where hairs come out and the secretions of the sebaceous glands.
The keratosis of the pilaris presents with small point-like follicular papules, diffused above all on the lateral surface of the arms, thighs and buttocks. Injuries to the face are also possible, particularly in children. Keratosis pilare can itch and rarely papules can develop into pustules. The skin may appear red.
The exact origin of the pilar keratosis is unknown, however an autosomal dominant inheritance has been found. Furthermore, it is often associated with atopic dermatitis and ichthyosis.
The lesions are more evident in the winter period, while in summer there is often a slight improvement.
Possible Causes * of Keratosis pilare
- Atopic dermatitis
- Ichthyosis
