The baby was born on Tuesday, Jul 29 and is now under observation at the neo-natal intensive care unit of the Jose Fabella Memorial Hospital in Manila.
A hospital spokeswoman said the baby was stable at the moment, but said she may die if tests proved both heads shared only one set of vital organs. She also said, "The rate of survival will depend on the shared organ. If they only have one heart, they will not survive,"
Officials also said the extra head appeared to be a twin of the girl who failed to fully separate during the development stage in early pregnancy.