A white layer on the baby’s tongue is usually a milk stain residue after drinking milk, you can not clean up, but it may also be thrush, at this time you should promptly seek medical attention. The baby’s tongue on the white layer, generally more milk stains after drinking milk residue in the tongue formation, this is a normal physiological phenomenon, you can not clean up, but if the parents are very concerned about, you can use a clean sterile cotton swabs or gauze, dipped in water to gently wipe the surface of the tongue, or the baby drink milk with a small amount of warm water slightly gargle rinsing, clean up a little bit of the residual milk stains. It should be noted that, if the baby in addition to the white tongue, but also found on the oral mucosa has a white membrane, and is not easy to wipe away, this time may also be thrush, if the parents found this situation, the need to take the baby to the hospital in a timely manner to seek medical attention.