Liver Problems. The color of stool can help guide your doctor to determine the cause of the problem. White stool is often a result of a liver disease such as viral hepatitis which causes the bilirubin in your blood level to rise. As a result there can be less of it in the stool and the stool then becomes "discolored" or white, gray, or pale. Note that eating all white foods can cause this as well.
Depends. A white secretion can be mucous, digest food particles, or liver/ intestinal issues. Best advice is to see your doctor to test your stools if indicated. Good luck.