Fatty liver is also known as hepatic steatosis. It happens when fat builds up in the liver. Having small amounts of fat in your liver is normal, but too much can become a health problem.
Your liver is the second largest organ in your body.
It helps process nutrients from food and drinks and filters harmful substances from your blood.
Too much fat in your liver can cause liver inflammation, which can damage your liver and create scarring. In severe cases, this scarring can lead to liver failure.
When fatty liver develops in someone who drinks a lot of alcohol, it’s known as alcoholic fatty liver disease (AFLD).
In someone who doesn’t drink a lot of alcohol, it’s known as non-alcoholic fatty liver disease(NAFLD).
According to researchers in the World Journal of Gastroenterology, NAFLD affects up to 25 to 30 percent of people in the United States and Europe.
Symptoms of fatty liver
In many cases, fatty liver causes no noticeable symptoms. But you may feel tired or experience discomfort or pain in the upper right side of your abdomen.
Some people with fatty liver disease develop complications, including liver scarring. Liver scarring is known as liver fibrosis.
If you develop severe liver fibrosis, it’s known as cirrhosis.
Cirrhosis may cause symptoms such as:
loss of appetite
yellow skin and eyes
web-like clusters of blood vessels under your skin
swelling of your legs
breast enlargement in men
Cirrhosis is a potentially life-threatening condition. Get the information you need to recognize and manage it.
Causes of fatty liver
Fatty liver develops when your body produces too much fat or doesn’t metabolize fat efficiently enough. The excess fat is stored in liver cells, where it accumulates and causes fatty liver disease.
This build-up of fat can be caused by a variety of things.
For example, drinking too much alcohol can cause alcoholic fatty liver disease. This is the first stage of alcohol-related liver disease.
In people who don’t drink a lot of alcohol, the cause of fatty liver disease is less clear.
One or more of the following factors may play a role:
high blood sugar
high levels of fat, especially triglycerides, in your blood
Less common causes include:
rapid weight loss
some types of infections, such as hepatitis C
side effects from some types of medications, such as methotrexate(Trexall), tamoxifen (Nolvadex), amiodorone (Pacerone), and valproic acid (Depakote)
exposure to certain toxins
Certain genes may also raise your risk of developing fatty liver.
Treatment for fatty liver
Currently, no medications have been approved to treat fatty liver disease.
More research is needed to develop and test medications to treat this condition.
In many cases, lifestyle changes can help reverse fatty liver disease. For example, your doctor might advise you to:
limit or avoid alcohol
take steps to lose weight
make changes to your diet