With biliary cirrhosis, the ducts become inflamed, damaged, and scarred, leading to impaired bile flow. This condition can cause clay-colored stools because the reduced bile flow results in ...

Conversely, the body excretes excess bilirubin in the urine, giving it a darker or amber-colored appearance. Anyone under a doctor’s care for liver disease should report any changes in stool color.

Possible causes include dietary factors, stress, celiac disease, and more. Stools may change color for various reasons, including a person’s diet and various underlying medical conditions.