How Long Can You Live After a Liver Transplant? 5, 10 and 20 Years Explained

The bigger concern is that many people do not know they have it.

For some, fatty liver remains mild. For others, it can lead to inflammation, scarring, cirrhosis and eventually serious liver disease.

What exactly is fatty liver?

Your liver normally contains a small amount of fat. Fatty liver disease develops when too much fat builds up inside liver cells.

Today, doctors increasingly use the term Metabolic Dysfunction-Associated Steatotic Liver Disease (MASLD) for fatty liver associated with metabolic risk factors. You may still hear the older terms “fatty liver” or “NAFLD”, and these remain the words most patients recognise.

Fatty liver is often linked with conditions such as diabetes, high cholesterol, high triglycerides, excess weight around the waist and high blood pressure.

But having fatty liver does not automatically mean that your liver is failing.

The important difference is whether there is simply fat in the liver or whether inflammation and scarring have begun.

Can I have fatty liver without any symptoms?

Yes. And this is very common.

Fatty liver is often described as a “silent” disease because many people have few or no symptoms.

You might discover it almost accidentally.

Perhaps you had an ultrasound for abdominal pain. Perhaps your liver enzymes were slightly abnormal during a routine blood test. Or perhaps you were being investigated for diabetes or cholesterol and your doctor suggested checking your liver.

Some people may experience tiredness or a vague discomfort beneath the ribs on the upper right side of the abdomen, but these symptoms are not specific to fatty liver.

So feeling well does not necessarily tell you what is happening inside your liver.

Who is more likely to develop fatty liver?

Your risk is higher if you have type 2 diabetes, excess weight — particularly around your abdomen — high triglycerides or abnormal cholesterol, high blood pressure, insulin resistance or several of these conditions together.

The Sri Lankan urban study also found fatty liver was strongly associated with features of metabolic syndrome, including obesity, insulin resistance, raised blood glucose and triglycerides.

This is why someone who has been told repeatedly that their “sugar is a little high”, their cholesterol needs watching or their waistline is increasing should not think of each issue separately.

Your liver can be part of the same metabolic picture.

I’m not overweight. Can I still get fatty liver?

Yes.

This is particularly important for South Asian patients because fatty liver is not limited to people who appear overweight.

Sri Lankan researchers have specifically studied lean fatty liver disease. In one large community cohort, 120 people — 4% of the entire study population — had fatty liver despite being classified as lean.

So “I am thin, therefore my liver must be fine” is not a safe assumption.

Family history, diabetes, cholesterol, body-fat distribution, diet, activity and other metabolic factors can all matter.

When does fatty liver become dangerous?

Fatty liver does not progress in exactly the same way in every person.

For many people, fat accumulates without causing advanced liver damage.

In others, however, the liver can become inflamed. Over time, repeated inflammation may cause fibrosis — scarring of the liver.

The progression can look like this:

That does not mean everyone with fatty liver will reach cirrhosis.

It means that once fatty liver has been found, it is useful to understand where you are on that pathway rather than simply being told, “You have a fatty liver.”

Sri Lankan research has highlighted fatty liver disease as an important contributor to chronic liver disease and liver cancer in the country.

My ultrasound says fatty liver. What should I do next?

First, don’t panic.

But don’t ignore it either.

An ultrasound can show that fat is present in the liver. What it cannot reliably tell you is how much inflammation or scarring is present.

Your doctor may look at your medical history, weight and waist measurement, diabetes and cholesterol status and blood-test results. Certain blood-test combinations can also be used to calculate scores such as FIB-4, which help estimate the likelihood of significant liver fibrosis.

If necessary, tests such as liver elastography or FibroScan can assess liver stiffness, which may indicate fibrosis.

Not everyone needs every test, and not everyone with fatty liver needs a liver biopsy.

The goal is to answer a more useful question: is this simply fat in the liver, or is there evidence that the liver is becoming scarred?

Can fatty liver be reversed?

In many people, particularly when it is identified early, fatty liver can improve significantly.

The liver has an impressive ability to recover when the factors causing damage are addressed.

For people who are overweight, gradual and sustained weight loss can reduce liver fat. AASLD notes that around 5–10% weight reduction can produce meaningful improvements in liver fat, inflammation and fibrosis, depending on the individual and the stage of disease. Regular physical activity is also beneficial.

Treatment may also involve better control of diabetes, cholesterol, triglycerides and blood pressure, as well as reviewing alcohol intake, diet and medications.

This does not mean following a crash diet or attempting a “liver detox”.

In fact, rapid weight loss and some unregulated herbal or nutritional products can cause problems of their own. Management should be appropriate to the individual and the condition of the liver.

Is fatty liver the same as cirrhosis?

No.

Fatty liver means there is excess fat inside the liver.

Cirrhosis means there has already been substantial and permanent scarring of liver tissue.

There can be several stages between the two.

This is why discovering fatty liver early can be valuable. It gives patients and doctors an opportunity to identify the cause, assess whether fibrosis is developing and reduce the chance of further damage.

When should I see a liver specialist?

Finding “fatty liver” on a scan does not necessarily mean you need complex treatment.

However, specialist assessment may be useful if you have abnormal liver tests, evidence of fibrosis or cirrhosis, diabetes together with fatty liver, unexplained or worsening liver abnormalities, or uncertainty about how advanced the condition is.

You should also seek medical assessment if you develop symptoms such as yellowing of the eyes or skin, swelling of the abdomen or legs, vomiting blood, black stools or new confusion. These are not typical symptoms of simple fatty liver and can indicate advanced liver disease.

Perhaps the most useful approach is this: don’t wait for your liver to hurt before paying attention to it.

Fatty liver often gives very little warning. Finding it early — and understanding whether it has begun to cause liver damage — is what makes the difference.

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About Prof. Thamara Perera

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This article provides general health information and should not be used as a substitute for an individual medical assessment.