Newborns have a fast metabolism and need to pay attention to keep their skin clean, but the frequency of bathing should not be generalized. Usually in winter, the ambient temperature is low and the baby’s skin is dry, so it is recommended to bathe once a week. The skin of newborns is very thin and tender, too frequent bathing can lead to their skin becoming dry. Northern winter weather is dry and cold, inappropriate bathing can easily lead to cold conditions, it is recommended to take a bath once a week. Southern winter if the environmental temperature is high, humidity is appropriate, newborns can be bathed 2-3 times a week, when the baby sweats more, more skin secretions, can consider appropriate increase in the frequency of bathing. In addition, the newborn bath time should not be too long, usually 5-10 minutes can be, the bath water temperature is usually 38-40 ℃, bathing attention to the protection of the ears, to avoid letting the water flow into the external auditory canal, so as to avoid infections, wash the umbilical cord after good care.