Hi I have gone through your query.... See because of presence if bile salt in stool colour is brown to yellow.... But if bile not produce by liver or if obstruction to its pathway then bile salt not present and can lead pale stool.... So this should not neglected ..... Following causes ruled out... -gall stone -liver hepatitis -cirrhosis -sclerosing cholangitis -alcohol affection -drug history -pancrease causes For that first detail history taken.... USG abdomen done.... If cause not clear then magnetic resonance cholangiopancreatography might be done.... CT scan also useful..... Avoid alcohol and smoke if habit.... According to cause treatment done... You can take follow up advise from our elite panelist after investigation... Keeping above things in mind consult doc. Take care.. Dr.Parth