Thank you for your query. A reduction or absence of bile salts can cause the stool to become yellow or pale. Bile salt production can be reduced due to liver disfunction. The passage of bile salts into the intestines can be prevented by blockages of the bile ducts due to inflammation, gallstones, or biliary dyskinesia. Pain, especially in the right upper abdomen, fever, nausea, itching, and yellowing of the skin and whites of the eyes can also occur with these conditions. The pancreas also produces substances important for digestion, including the enzyme lipase, which breaks down fats. Excess fat in the stool can cause yellowish, bulky stool that floats, has an oily or greasy appearance, and smells foul. I advice-give stool analysis and ultrasound of liver,pancreas for rule out following up symptoms.