Chicken skin, also known as fillet disease, is a physiological keratinized skin change. Most of the patients' skin lesions are hair follicle inhibitory papules the size of a needle cap, which can be normal or reddish in color, mainly distributed on the upper limb side, the lateral thigh and the buttocks. Treatment can be taken orally or externally. External use of 10% urea cream, or 0. 1% tretinoin cream and cod liver oil ointment can improve symptoms. But if the effect is not obvious, you can take drugs and vitamin A orally. Usually, we should also pay attention to eating more foods containing vitamin A, such as carrots, egg yolks, animal livers, etc., which is good for the improvement of fillet disease. However, it is suggested to go to a regular hospital as soon as possible and treat under the guidance of a clinician.