Cholestatic liver diseases (CLDs) are a group of disorders characterized by the impairment of bile formation, secretion, or excretion. Chronic cholestasis can lead to liver fibrosis and cirrhosis. The most common types of CLDs are primary biliary cholangitis (PBC) and primary sclerosing cholangitis (PSC). CLDs are classified into intrahepatic and extrahepatic types based on their etiology. Intrahepatic cholestasis is mainly caused by immune dysfunction, viral infections, drug-induced injury, and alcohol-related damage, whereas extrahepatic cholestasis often results from bile duct stones, tumors, or strictures. Pharmacological treatment of PBC include: Ursodeoxycholic acid (UDCA): UDCA is the first-line treatment for PBC. It improves...