The liver is located in the upper right quadrant of the abdomen below the diaphragm. It has two lobes and is divided into segments and lobules. The liver receives blood from the hepatic artery and portal vein and performs important metabolic, hematological, synthetic, protective, storage, and excretory functions. Cirrhosis is scarring of the liver caused by chronic liver disease that results in deterioration of liver function and portal hypertension. Common causes are alcohol, hepatitis B/C, and obesity. Symptoms include fatigue, jaundice, ascites, and bleeding from varices. Treatment involves managing complications through diet, medications, TIPS procedure, and potentially transplantation.