Hyperkeratosis is a condition or a disorder in which there is thickening of the skin. It occurs for a variety of reasons. As a hereditary disorder, it usually starts after the first or second decade of life. The hereditary condition affects the palms, nails and oral cavity. It tends to be aggravated by sunlight and is generally worse in summer months. Both women and men are affected. Other injuries or localized irritation can lead to focal hyperkeratosis. Keratosis Pilaris occurs around the hair follicles, usually affecting the upper arm, thigh and buttock.
Causes of Hyperkeratosis Of The Lip
Hyperkeratosis due to Darier-White disease is a hereditary condition. Keratosis Pilaris occurs when the hyperkeratosis blocks the hair follicle.
Signs and Symptoms of Hyperkeratosis Of The Lip
Hyperkeratosis usually begins as a plaque or small area of thickened skin. It may thicken and become increasingly pigmented. The hereditary form of this disorder, Darier-White disease, usually occurs in those areas where seborrhea is found. These include patches on the ears, the back, between the nose and the face, the scalp, forehead and in the groin. In this disorder, the plaques or patches gradually enlarge and eventually appear like warts. Lesions around the mouth and the nails are commonly found. In Keratosis Pilaris, there are small areas of hyperkeratosis that develop around the hair follicles. They produce hair loss. The follicles which are involved often appear red. Chronic irritation or trauma can lead to localized hyperkeratosis, where the skin become thick and rough.
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Medical Content Last Updated on 07/12/2008
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