Follicular keratosis

Keratosis follicularis, also known as Darier's disease, is a rare hereditary disease with poor epidermal keratosis as the basic pathological change. It usually develops at the age of 8 to 16 years. It is rare before the age of 5 and has no obvious racial and gender differences. The disease can gradually worsen with age. The characteristic skin lesion is a hard papule with hair follicles from the tip of the needle to the pea. Or bran-like scales.