What Is Pitted Keratolysis?

Hereditary keratosis is a hereditary chronic skin disease characterized by punctate thickening or hyperkeratosis of the palm and plantar skin, and is also called punctate palmoplantar keratosis. It usually occurs at the age of 15 to 30 years old. The main clinical feature is keratotic papules on the palms, palms, and fingers. Generally, there are no conscious symptoms and there may be nail malnutrition.