The organ affected by the disease cirrhosis is the liver. Cirrhosis is a late-stage scarring (fibrosis) of the liver caused by various factors, including chronic alcohol abuse, viral hepatitis, and fatty liver disease. As liver tissue becomes scarred, its ability to function properly diminishes, leading to various health issues such as jaundice, bad breathing, and fluid buildup in the abdomen. Effective management of cirrhosis focuses on treatment of the underlying cause, lifestyle changes, and regular monitoring to prevent complications. Severe cases may require liver transplantation for treatment.