Eczema will grow on the baby’s buttocks because the baby’s buttocks often use diapers or other factors often come into contact with external allergens. Generally depends on two factors, on the one hand, the external allergens often contact with the baby’s skin, including the baby’s buttocks, can lead to the occurrence of baby eczema. On the other hand, the baby itself is a sensitive body, so it will also easily lead to eczema on the buttocks. If eczema occurs, you need to actively use medication to intervene, you can usually use pediatric skin care lotion to cold boiled water external washing.