Follicular Keratosis

Follicular keratosis is another type of keratosis skin problem. It can be referred to by many other names. Examples are keratosis follicularis, darier disease, dariers disease, or darier’s disease, to name a few.

This type of keratosis originates from the hair follicle in the skin. It commonly affects the hands, face (ears, sides of the nose, forehead), scalp, neck, chest, back, thighs, groin, and abdomen. It is hereditary and this genetic disorder is considered rare.

Darier disease is not contagious, can affect both sexes, and usually begins to be present in the late adolescent years. Sunlight, as well as heat and humidity, irritate this keratosis follicularis skin problem.


The symptoms of the affected skin areas include:

  • dark crusty skin patches that are brown, yellow-brown, or may be skin colored
  • itching
  • greasy and scaly warty type growths or papules that may fuse together and look like one large growth
  • pus may be present in the skin patches
  • a distinct odor is usually present with the rash
  • many darier disease suffers will have broad red and white stripes on the nails of their hands

Follicular Keratosis Treatments

Moderate treatments involve the use of moisturizers and sunscreen to avoid irritating the skin condition when outdoors. Keeping the skin cool and dry by wearing light clothing, for example, helps as well. Treatments that are more extensive involve the use of oral or topical retinoids or antibiotics to treat bacterial infections that may flare up. Topical corticosteroids may also be used. Other treatments for keratosis follicularis can include dermabrasion to smooth out the growths, electrosurgery, and laser treatments.

More information on different types of keratosis:

keratosis | actinic | actinic cheilitis | follicular keratosis | pilaris | seborrheic | senile

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