Liver Cancer

What is a Liver cancer?

Liver cancer is cancer that begins in the cells of your liver. Your liver is a football-sized organ that sits in the upper right portion of your abdomen, beneath your diaphragm and above your stomach.

Several types of cancer can form in the liver. The most common type of liver cancer is hepatocellular carcinoma, which begins in the main type of liver cell (hepatocyte). Other types of liver cancer, such as intrahepatic cholangiocarcinoma and hepatoblastoma, are much less common.

Symptoms

Most people don’t have signs and symptoms in the early stages of primary liver cancer. When signs and symptoms do appear, they may include:

  • Losing weight
  • without trying
  • Loss of appetite
  • Upper abdominal pain
  • Nausea and vomiting
  • General weakness and fatigue
  • Abdominal swelling
  • Yellow discoloration of your skin and the whites of your eyes (jaundice)
    White, chalky stools

Causes

Liver cancer happens when liver cells develop changes (mutations) in their DNA. A cell’s DNA is the material that provides instructions for every chemical process in your body. DNA mutations cause changes in these instructions. One result is that cells may begin to grow out of control and eventually form a tumor — a mass of cancerous cells.

Sometimes the cause of liver cancer is known, such as with chronic hepatitis infections. But sometimes liver cancer happens in people with no underlying diseases and it’s not clear what causes it.

Risk factors

Factors that increase the risk of primary liver cancer include:

  • Chronic infection with HBV or HCV. Chronic infection with the hepatitis B virus (HBV) or hepatitis C virus (HCV) increases your risk of liver cancer.
  • Cirrhosis. This progressive and irreversible condition causes scar tissue to form in your liver and increases your chances of developing liver cancer.
  • Certain inherited liver diseases. Liver diseases that can increase the risk of liver cancer include hemochromatosis and Wilson’s disease.
  • Diabetes. People with this blood sugar disorder have a greater risk of liver cancer than those who don’t have diabetes.
  • Nonalcoholic fatty liver disease. An accumulation of fat in the liver increases the risk of liver cancer.
  • Exposure to aflatoxins. Aflatoxins are poisons produced by molds that grow on crops that are stored poorly. Crops, such as grains and nuts, can become contaminated with aflatoxins, which can end up in foods made of these products.
  • Excessive alcohol consumption. Consuming more than a moderate amount of alcohol daily over many years can lead to irreversible liver damage and increase your risk of liver cancer.

Prevention

Reduce your risk of cirrhosis

Cirrhosis is scarring of the liver, and it increases the risk of liver cancer. You can reduce your risk of cirrhosis if you:

  • Drink alcohol in moderation, if at all. If you choose to drink alcohol, limit the amount you drink. For women, this means no more than one drink a day. For men, this means no more than two drinks a day.
  • Maintain a healthy weight. If your current weight is healthy, work to maintain it by choosing a healthy diet and exercising most days of the week. If you need to lose weight, reduce the number of calories you eat each day and increase the amount of exercise you do. Aim to lose weight slowly — 1 or 2 pounds (0.5 to 1 kilograms) each week