This is not normal and could indicate a problem with the liver or binary tract. Stool gets its brown color from bile, and if the liver isn't producing it effectively,it leaves the stool white. She should be seen by a doctor asap.
Problems include:
* Liver infections, such as hepatitis
* Biliary cirrhosis
* Gallstones
* Anatomic abnormalities of the intestines or bile ducts present at birth (congenital)
* Inborn errors of metabolism
* Sclerosing cholangitis
* Narrowing (strictures) of bile ducts
* Cysts
* Tumors
* A side effect of certain medications, such as some antibiotics, antifungal drugs and antacids