Keratosis is a common medical disease of the skin epithelium, primarily the skin of the face and body, characterized by the appearance of yellowish-brown pigment spots caused by dysfunction of the sebaceous glands. The disease can have serious consequences and requires long-term treatment, but in advanced cases surgery may be required. Keratosis can occur in both adults and children, men and women.
**Keratosis pigmentosa** or keratotic erythrosis is a benign