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]]>Fatty liver is a condition where fat builds up in the liver, also known as hepatic steatosis. Let us understand more about it and how it will become a health problem.
More than 20% of the population would have had Fatty liver and are unaware of it. This is more common in the USA and Europe than in India. Liver is the second largest organ in the human body. Its main function is to purify blood by filtering out unwanted substances and helping processing of nutrients the body get through food.
A condition where fat builds up in the liver is known as Fatty liver disease. Too much fat in the liver may cause liver inflammation. This inflammation may damage the liver and create scarring which in future may lead to liver failure. There are two types of liver disease NAFLD and AFLD.
Nonalcoholic fatty liver disease (NAFLD) occurs in individuals who don’t drink a lot of alcohol.
Alcoholic fatty liver disease (AFLD) occurs in individuals who drink a lot of alcohol. This is also known as alcoholic steatohepatitis.
Fatty liver usually has no noticeable symptoms. But individuals may experience pain or discomfort in the upper right side of your abdomen or generally feel tired. Fatty liver disease may progress as these four stages:
Simple fatty liver where excess fat is built up in the liver. This stage is mostly harmless when it doesn’t progress.
Steatohepatitis is a stage where there is inflammation in the liver along with excess fat.
Fibrosis is a stage where there is persistent inflammation in the liver which may cause scarring. But the liver may be functioning normally.
Cirrhosis is a stage where scarring of the liver is widespread and thus impairing the liver’s functioning. This severe stage is irreversible. The liver damage due to this is permanent. This stage may have symptoms like – abdominal pain, loss of appetite, weight loss, weakness or fatigue, nausea, itchy skin, yellow skin and eyes, easy bruising or bleeding, dark-colored urine, pale stools, fluid accumulation in the abdomen (ascites), swelling (edema) of your legs, web-like clusters of blood vessels under your skin, breast enlargement in men and confusion.
The fatty liver in individuals who don’t drink a lot of alcohol or have no history of heavy alcohol drinking is known as NAFLD. This usually does not have inflammation or other related complications. A type of NAFLD is Nonalcoholic steatohepatitis (NASH) which is diagnosed as fatty liver accompanied by inflammation. Untreated NASH may lead to liver fibrosis and then to cirrhosis and liver failure.
It is well known that consuming a lot of alcohol damages the liver. AFLD is the first stage of alcohol related liver disease. A type of AFLD is Alcoholic steatohepatitis (ASH) also known as alcoholic hepatitis which is diagnosed as fatty liver accompanied by inflammation. Untreated ASH may lead to liver fibrosis and then to cirrhosis and liver failure.
AFLP is a condition when during pregnancy there is excess fat build up. It is a serious pregnancy complication but very rare, for both mother and child it may cause health risks when not treated on time. It can be noticed in the third trimester of pregnancy and the cause is not known. Genetics may cause this condition during pregnancy. A few weeks after giving birth, the liver may return to normal health.
Alcohol consumption can cause AFLD. Other primary causes are –
obesity
type 2 diabetes
insulin resistance
high levels of fat in the blood, mainly triglycerides
metabolic syndrome
Secondary causes are –
pregnancy
side effects of medications
infections like hepatitis C
genetic conditions
Family doctor may have a doubt based on your
family medical history, history of liver disease
alcohol consumption
lifestyle habits
medical conditions
medications taken
off late changes in your health
Physical exam – Doctor may palpate or press on abdomen and feel the enlarged liver.
Blood tests – that show elevated liver enzymes which indicate liver inflammation but not cause of inflammation.
Imaging studies –
ultrasound exam
CT scan
MRI scan
Vibration Controlled Transient Elastography (VCTE, FibroScan) measures liver stiffness using low frequency sound waves to help check for scarring.
Liver biopsy – It is the best way to determine the severity of liver disease and check if it is just fatty liver disease or liver scarring.
There is no treatment for fatty liver disease but fatty liver is reversible in most of the cases. Lifestyle changes listed below can help reverse most stages of fatty liver disease –
limit or avoid alcohol
losing weight and reducing body fat percentage
diet changes, eating healthy food
avoid supplements and medications that are hard on liver
receive hepatitis A and hepatitis B vaccines
regular hepatitis C screenings
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