A number of conditions, including liver and gallbladder disorders, pancreatic disorders and autoimmune diseases, can cause yellow stool, according to Healthline. Such conditions include cirrhosis of the liver, chronic pancreatitis and celiac disease.
Cirrhosis occurs when scar tissue forms on the liver, causing liver function to decrease over time, notes the American Liver Foundation. The leading cause of the condition is chronic alcoholism, but other causes include bile duct disease, nonalcoholic steatohepatitis, chronic viral hepatitis and certain genetic diseases. Symptoms of cirrhosis usually increase over time and include nausea, severe itching, stomach pain and appetite loss.
Long-term inflammation of the pancreas often leads to chronic pancreatitis, explains Healthline. There are many causes of the condition, with the main cause being excessive alcohol intake. Other causes include poor nutrition, drug use, genetics and a narrow pancreatic duct. The disease can lead to complications, such as calcium stones in the pancreas and loss of pancreatic function. Symptoms of the condition include excess fat in stools, vomiting and weight loss.
Celiac disease is a hereditary disease that occurs when the immune system causes damage to the small intestines, which prevents proper digestion of food, according to the International Foundation for Functional Gastrointestinal Disorders. Symptoms of the disease include chronic diarrhea, weight loss, fatigue, delayed growth and anemia.