Why? As food makes its way down the digestive tract, it gets stained by bile, which constantly drains into the gut. Bile, which breaks down fats, is made by the liver, stored in the gallbladder, and ...

Primary sclerosing cholangitis (PSC) is a chronic, progressive disease of the bile duct system. The bile duct system carries bile from the liver and gallbladder into the first part of the small ...