Hyperkeratosis Follicular

Hyperkeratosis of hair follicles is one of the types of alopecia.

Hyperkeratosis is keratinization of the skin epidermis. Keratinized cells represent an extreme stage of the epidermal cycle. The mechanisms of keratosis development are due to an increase in the life span of epidermal cells and a delay in their terminal differentiation, which is associated with an imbalance between the proliferation of cells in the basal layer and their differentiation into the upper layers of the epidermis. With hyperkeratosis, thickening of the stratum corneum of the skin is observed due to an increase in the number of horny scales. The process of keratinization spreads unevenly across the layers of the epidermis, most often starting from the granular layer (superficial layer). Depending on what area of ​​the skin hyperkeratosis occurs - a sign of what disease it is - there are several types of it:

the dry form is common in eczema and dermatitis; hyperkeratosis of the sebaceous glands is characteristic of seborrhea of ​​the oily type; Keratosis of the scalp or hair follicles is one of the names for dry seborrhea. One of the reasons for the development of this disease may be a violation of the water-lipid balance of the skin. This leads to an increase in the secretion of sebum, a change in the qualitative composition of which contributes to the formation of hard, closed comedones at the mouths of the hair follicles and their clogging.