The liver is a vital organ that performs many important functions in the body, including filtering toxins, producing bile, and regulating the metabolism of nutrients, hormones, and drugs. When the liver is damaged or infected, its ability to perform these functions can be severely impaired, leading to a wide range of serious health problems known collectively as liver disease . Types of Liver Disease There are many different types of liver disease, each with its own specific causes, symptoms, and treatment options. Some of the most common types of liver disease include viral hepatitis (caused by the hepatitis A, B, C, D, or E viruses), alcohol-related liver disease , fatty liver disease , cirrhosis , and liver cancer . One of the most important factors in the development of liver disease is lifestyle. Alcohol abuse is a leading cause of liver disease, as it can cause damage to the liver cells and lead to fatty liver disease, cirrhosis, and liver cancer. Similarly, exposure to toxins s...