Craniofacial duplication [wiki], or known as Diprosopus, is an extremely rare congenital disorder whereby part or all of the face is duplicated on the head. Although classically considered conjoined twinning, this anomaly is not normally due to the fusion or incomplete separation of two embryos. It is the result of a protein called Sonic hedgehog homolog (SHH).
In such a rare case, an Indian baby girl named Lali was born with two faces last month. Baby Lali's facial features are duplicated (four eyes, two noses, and two mouths) with the exception of her ears - she has two. Now one month old, this baby with two faces who was claimed by her villagers as the reincarnation of the Indian God Ganesha, was said doing well.
"She drinks milk from her two mouths and opens and shuts all the four eyes at one time," the director of Saifi Hospital, Sabir Ali, said.
"She is leading a normal life with no breathing difficulties.''
He said he saw no need for surgery. ..."Her mother, Sushma, told The Hindustan Times her daughter was "just like any other child".
The doctor said everything is normal when she was born. So where's the need to get medical help?" 24-year-old Kumar said.
"She's fed through one mouth and sucks her thumb with the other. We use whichever mouth is free to feed her."