Liver diseases refer to a range of conditions that affect the liver's ability to function properly. The liver is a vital organ that helps digest food, store energy, and remove toxins from the body. Common liver diseases include hepatitis, fatty liver disease, and cirrhosis. These conditions can be caused by factors such as excessive alcohol consumption, viral infections, or obesity. Symptoms of liver diseases may include fatigue, jaundice (yellowing of the skin and eyes), and abdominal pain. Early detection and treatment are crucial to prevent serious complications. Maintaining a healthy lifestyle, including a balanced diet and regular exercise, can help protect the liver from damage.