Children with cleft tongue syndrome, also called bifid tongue, have a split running along the length of their tongue. Clefting occurs because the body fails to completely develop in order to join the two sides of the tongue together. Prenatal ultrasounds sometimes detect the presence of the cleft before birth. The cause is usually unknown and cannot be prevented, but sometimes exposure to certain viruses or drugs during pregnancy may cause cleft tongue. The biggest problem with cleft tongue is difficulty eating. Most of the time, a cleft tongue can be fixed by surgery up to several months after birth. Other than this, children with cleft tongue lead a normal life.