Liver failure

What is liver failure?

The liver is the body's central metabolic organ, responsible for filtering toxins, producing proteins essential for blood clotting, regulating blood sugar, processing nutrients, and producing bile for digestion. Liver failure occurs when so much liver tissue has been damaged that these functions can no longer be maintained.

There are two distinct forms:

• Acute liver failure: develops rapidly, over days to weeks, in a previously healthy liver. It is most commonly caused by paracetamol overdose, viral hepatitis, or a severe drug reaction. It is a medical emergency requiring intensive care.

• Chronic liver failure: develops gradually over months or years as progressive scarring replaces healthy liver tissue. It is the end stage of chronic liver disease from causes including alcohol, fatty liver disease, hepatitis B or C, and haemochromatosis. Many cases can be prevented or their progression substantially slowed when the underlying liver disease is identified and treated early.

For earlier stages of liver disease, including fatty liver and alcohol-related liver disease, see our dedicated liver disease page.

Symptoms of liver failure

Liver failure symptoms reflect the liver's inability to perform its essential functions. They develop progressively and include:

• Jaundice, a yellowing of the skin and whites of the eyes, from bilirubin buildup

• Severe fatigue and weakness

• Swollen abdomen from fluid accumulation (ascites)

• Swelling in the legs and ankles

• Easy bruising and prolonged bleeding from reduced clotting protein production

• Dark urine and pale or clay-coloured stools

• Persistent itching from bile salt accumulation

• Nausea, vomiting, and loss of appetite

• Confusion, disorientation, or personality changes from hepatic encephalopathy, where toxins accumulate in the brain

• In advanced cases, coma

What causes liver failure?

Chronic liver failure almost always develops as the end stage of a long-standing liver condition. Common contributing causes include:

• Alcohol-related liver disease is one of the leading causes. Sustained excess alcohol use causes progressive inflammation, fibrosis, and cirrhosis over years.

• Non-alcoholic fatty liver disease (NAFLD) driven by obesity, diabetes, and metabolic syndrome can progress to cirrhosis and liver failure, often without any alcohol use at all.

• Chronic hepatitis B and C infection causes ongoing liver inflammation that, without treatment, leads to cirrhosis and liver failure over decades.

• Haemochromatosis causes iron to accumulate in liver tissue over time, causing fibrosis, cirrhosis, and eventually liver failure if untreated.

• Autoimmune hepatitis results in the immune system attacking liver cells, causing progressive damage that requires immunosuppressive treatment to control.

• Primary biliary cholangitis and primary sclerosing cholangitis are bile duct conditions that cause progressive liver damage and cirrhosis over time.

• Paracetamol overdose is an important and well-established cause of acute liver failure, particularly in countries where paracetamol is widely used.

How is liver failure detected?

Liver failure is assessed through clinical findings and blood tests that evaluate liver function, with imaging used to assess the liver's structure and identify underlying liver disease. The goal is to identify liver injury and chronic liver disease early, before advanced fibrosis, cirrhosis or liver failure develops.

Blood tests Elfcare's panel includes a comprehensive liver function and metabolic profile:

• ALT and AST are liver enzymes that rise when liver cells are damaged or inflamed. ALT is the most specific marker of liver cell injury.

• GGT can be elevated in alcohol-associated liver disease and other conditions affecting the liver and bile ducts, but it is not specific to alcohol-related liver damage.

• ALP is elevated in bile duct involvement and infiltrative liver disease.

• Bilirubin reflects the liver's ability to process and excrete bilirubin. Elevated levels can cause jaundice and may occur with liver dysfunction or impaired bile flow.

• Albumin is produced by the liver and falls as synthetic function declines. Low albumin is a marker of advanced liver disease.

• Ferritin and transferrin saturation can help identify iron overload and are commonly used when haemochromatosis is suspected.

• HbA1c and glucose assess metabolic health. Diabetes and insulin resistance are primary drivers of fatty liver progression.

• Triglycerides and lipid profile reflect metabolic liver stress and cardiovascular risk, which is elevated in advanced liver disease.

• Platelet count can fall as chronic liver disease progresses, partly because portal hypertension causes enlargement of the spleen and increased sequestration of platelets. Reduced thrombopoietin production may also contribute.

• CRP reflects systemic inflammation driving liver disease progression.

Abdominal MRI and AMRA body composition analysis Elfcare's full body MRI images the liver directly, identifying structural changes including fibrosis, cirrhosis, portal hypertension signs, ascites, and any hepatic masses. Elfcare's AMRA analysis quantifies liver fat percentage with clinical precision, providing the most sensitive non-invasive assessment of fatty liver disease progression available.

Why early detection matters

Many cases of liver failure can be prevented or delayed by identifying and treating the underlying liver disease before advanced damage develops. The conditions that lead to it, including fatty liver, alcohol-related liver disease, haemochromatosis, and viral hepatitis, are all identifiable years or even decades before failure develops. At the early stages, intervention is straightforward: dietary change, alcohol reduction, iron removal through phlebotomy, or antiviral treatment. Once cirrhosis is established, management becomes significantly more complex and transplantation may become the only curative option. Identifying liver stress early through blood testing and imaging gives the widest possible window to act before irreversible damage occurs.

How Elfcare can help

Elfcare's blood panel covers a full liver function profile including ALT, AST, GGT, ALP, bilirubin, albumin, platelet count, ferritin, and metabolic markers. Together these provide both the direct liver function picture and the metabolic context in which liver failure most commonly develops.

Our abdominal MRI images the liver structure directly, and our AMRA analysis quantifies liver fat, offering a comprehensive structural and metabolic liver assessment in a single examination.

If our blood tests or MRI identify a suspicious finding, we take care of further diagnostics or refer you to the appropriate specialist.