Babies with normal tongue coating usually do not need to be brushed if the tongue coating is thick may need to be brushed. Usually, babies do not need to clean their tongue, but as babies are often fed or formula fed, a small amount of milk may remain on the baby’s tongue after drinking, so it is important to get into the habit of letting babies drink warm water to be able to clean their mouths. Infant tongue gradually become thicker, it is easy to increase the risk of bacterial growth need to clean the baby’s tongue is generally the use of cotton swabs or gauze gently wipe the tongue area, to avoid the tongue is too thick and lead to discomfort phenomenon. In addition, it is important to observe that if an infant’s tongue is thickened and accompanied by bad breath, it is likely to be caused by inflammation of the oral cavity and the infant needs to be taken to the hospital for medical attention.