Chicken skin, or perifollicular keratosis, also known as hair moss, is a condition with a certain genetic predisposition. The disease manifests as keratinized papules at the mouth of the hair follicle with keratinized plugs or in line with the pores, and is autosomal dominant, with more females than males, and with a genetic predisposition in about 50% or more of patients. It may be associated with vitamin A and vitamin B12 deficiencies and impaired adhesion of keratinized cells at the follicular funnel opening. The disease usually has no special discomfort and can be left untreated. If the patient cares, topical application of creams with exfoliating effect such as retinoic acid cream, tazarotene gel and urea cream can improve the symptoms. Topical moisturizing preparations should also be used in conjunction. Drugs need to be used under the guidance of a physician, if you need treatment, it is recommended that regular hospitals.