It takes about 20 days for newborns to shed their skin, and most of them can shed it completely within a month, which is a normal physiological phenomenon. Because the fetus left the mother’s environment full of amniotic fluid, the external environment is drier than the mother, resulting in some newborns have different degrees of peeling, which is an adaptation process of the newborn to the environment. The normal human skin metabolism time is about 28-32 days, the metabolism of newborns is more vigorous than that of adults, basically in about 20 days after birth can complete the process of peeling, most will not exceed 1 month. If there is no obvious skin breakage or uncomfortable situation, parents should not worry too much and should not tear off the skin tissue that has not been completely shed. Some peeling may also be caused by certain diseases, such as ichthyosis, seborrheic dermatitis, neonatal lupus erythematosus, etc., which require prompt medical attention. In addition, parents should pay attention to newborn skin care, but do not over-clean, wash and apply a milder moisturizing skin care products, avoid using richly scented or brightly colored skin care products.