Hypertrichosis Lanuginosa, Congenital or Acquired
Congenital Generalized Hypertrichosis
Congenital Smooth Muscle Hamartoma
Heterotopic Brain Tissue
Skin Trauma, e.g. chronic rubbing.
The Periphery of Burns
Genetic. Some families have more hair than others.
Postmenopausal. There may be an increase in facial hair growth in postmenopausal women.
Drugs: Various drugs, when given systemically, can cause hypertrichosis. These include minoxidil, cyclosporin, phenytoin and corticosteroids. Some drugs, when applied topically, can induce hair growth including minoxidil and topical steroids.
Infectious Disease. Localized hypertrichosis after infectious rash has been reported in an infant with recent chicken pox as well as cellulitis.
Melanocytic Nevi. Nevi, especially the raised type, may be associated with excess hair.
Trichofolliculoma. Solitary papule with a solitary tuft of white hairs.