 [ Symptoms ] i would like to know about white stolls like milk what it would might be something to worry and that was 2 times already [ Disease ] a billiary obstruction can cause white feces a stoolâs color originates from the billiary pigment or bilirubin that is excreted through bile into the intestines bilirubin turns into biliverdin and sterkobillin that give stool its typical color an obstruction of the bile duct choledocus may be caused by a bile stone or some type of tumor laboratory analyses direct bilirubin an ultrasound scan a ct scan an intravenous cholangiography and an endoscopic retrograde cholangio pancreaticography ercp are diagnostic tools that will provide you with more information about the cause of the white stool or aholia you can consult an internist for more details