The manifestations of thick skin stratum corneum include rough skin, enlarged pores and easy infection. 1. Rough skin: long-term friction and dryness of the skin will lead to excessive thickening of the stratum corneum, which is visually rough. 2. Enlarged pores: affected by the body’s hormone secretion, cell metabolism will slow down, keratin will accumulate around the pores, and then the pores will become very thick, sebaceous glands, sweat glands, and other secretions are difficult to discharge easy to block, and further support the pores. 3. Easily infected: cuticle is not according to the physiological law of normal shedding metabolism, will accumulate around the pores, sebaceous glands, sweat glands secretion discharge difficulties, if cleaned up improperly or improper care, it is very easy to lead to acne, folliculitis and other skin infections. If the symptoms of thick skin horny layer are not relieved by daily cleansing and care measures, it is necessary to go to a regular medical institution in time to reduce the adverse effects of the disease.