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Alcoholic liver disease

Liver damage due to alcohol consumption

Alcoholic liver disease — from steatosis to cirrhosis

Alcoholic liver disease (ALD) is a spectrum of damage from regular alcohol use: from fatty steatosis through alcoholic steatohepatitis to cirrhosis.

Steatosis appears after just a few years of heavy drinking and is reversible on stopping alcohol. Cirrhosis usually takes ten or more years and is irreversible. There is no specific test — the diagnosis is made after ruling out other causes.

Stages and doses

First steatosis develops (reversible), then in some people — alcoholic hepatitis, which can run a severe course, like acute liver failure on top of chronic disease, and ultimately cirrhosis.

The risk grows with regular intake above roughly 40–60 g of pure alcohol per day in men and above 20 g in women; female sex, genetics and excess weight aggravate the damage.

How to suspect it on tests

A characteristic feature is an AST/ALT ratio above 2, while the absolute transaminase values are usually moderate (often below 300–400 U/L). GGT is often elevated and the mean red-cell volume (MCV) is increased.

The main treatment

The only thing that truly changes the prognosis at any stage is complete abstinence from alcohol. Nutrition and correction of deficiencies are also important. In severe alcoholic hepatitis, corticosteroids are used in selected cases, and in cirrhosis transplantation is considered.

Reference ranges

Laboratory clues in alcoholic liver damage (none proves alcohol on its own).

AST/ALTusually > 2 — argues for alcohol
Absolute ALT/ASTmore often moderately elevated (< 300–400 U/L)
GGToften markedly elevated
MCV (red-cell volume)often increased
Important: The decisive factors are a history of alcohol use and the exclusion of other causes of liver disease.

Calculate using this marker

Calculators where Alcoholic liver disease (ALD) is used directly:

ANI (Alcoholic Liver Index) Distinguishes the cause of injury: alcoholic or metabolic Open FIB-4 (Liver Fibrosis) A first-line check for liver scarring, adjusted for age Open R-Factor Shows what's driving the injury — cholestasis or liver-cell death Open

Frequently asked questions

How much alcohol harms the liver?

The risk grows noticeably with regular intake above roughly 40–60 g of pure alcohol per day in men and above 20 g in women. There is no threshold that is completely safe for the liver.

Will the liver recover if you stop drinking?

At the stage of steatosis and even hepatitis the liver largely recovers. Cirrhosis is irreversible, but giving up alcohol halts the progression and improves the prognosis.

Related terms

Steatosis Fatty degeneration of the liver Steatohepatitis Fatty liver with inflammation Cirrhosis The extreme stage of liver fibrosis with irreversible tissue restructuring Cytolysis (hepatocellular injury) the destruction of liver cells with release of enzymes into the blood GGT (Gamma-glutamyl transferase) A liver enzyme — the most sensitive marker of cholestasis and alcohol-related damage AST (aspartate aminotransferase) An enzyme of the liver, heart and muscles; a marker of tissue damage ALT (alanine aminotransferase) A liver enzyme; a marker of liver-cell damage Liver fibrosis Scarring of the liver — the replacement of healthy tissue by connective tissue

Sources

  1. AASLD — Alcohol-Associated Liver Disease Practice Guidance
  2. ACG Clinical Guideline — Alcoholic Liver Disease
  3. NCBI PMC — Alcohol-Related Liver Disease: Basic Mechanisms and Clinical Perspectives
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This content is educational and does not replace consultation with a physician. Reference ranges may vary depending on the laboratory and method — rely on the ranges stated on your own test report.
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