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Liver Disease: From Fatty Liver to Cirrhosis

The liver has remarkable regenerative capacity: but advanced scarring (cirrhosis) is irreversible. Early detection through blood tests and lifestyle change prevents progression to serious disease.

Written by Suman Konda, PharmD, Clinical Pharmacist · Based on peer-reviewed sources · Editorial policy · Not medical advice

Last updated: · How we check our content

NAFLD prevalence
~25% of global population
NASH progresses to cirrhosis
~20% over 20 years
Liver cirrhosis 5-yr survival
~50%
Alcohol limit (safe)
14 units/week (UK); none is safest

Spectrum of Liver Disease

StageDescriptionReversibilityKey Intervention
Simple steatosis (fatty liver / NAFLD)Fat deposits; normal inflammationFully reversibleWeight loss; alcohol reduction
NASH (non-alcoholic steatohepatitis)Fat + inflammationLargely reversibleSame; plus address metabolic syndrome
Fibrosis (stages F1–F3)Scarring: degree variesPartially reversibleWeight loss; treat cause; avoid hepatotoxins
Cirrhosis (F4)Advanced scarring; altered architectureLargely irreversiblePrevent complications; transplant if end-stage
Decompensated cirrhosisJaundice, ascites, encephalopathy, variceal bleedingEmergencySpecialist/hospital management

Signs of Advanced Liver Disease

  • Jaundice (yellow skin and eyes): reduced bilirubin conjugation
  • Ascites: fluid in abdomen from low albumin + portal hypertension
  • Spider naevi, >5 on upper chest and arms, sinister
  • Palmar erythema: red palms
  • Caput medusae: dilated abdominal veins
  • Hepatic encephalopathy: confusion, asterixis ('liver flap') from ammonia
  • Splenomegaly: portal hypertension causes back-pressure
FIB-4 ScoreFIB-4 = (age × AST) / (platelet count × √ALT). A free online calculator estimates fibrosis stage without biopsy. FIB-4 <1.3 suggests minimal fibrosis; >2.67 suggests advanced fibrosis: warrants transient elastography (FibroScan).
What is NAFLD?
Non-alcoholic fatty liver disease: fat accumulation in the liver (≥5% of hepatocytes) in people drinking less than 21 units/week. It's associated with obesity, diabetes, and metabolic syndrome. The new preferred term is MASLD (metabolic-associated steatotic liver disease).
Can NAFLD be reversed?
Yes. Early NAFLD and NASH respond well to weight loss (even 7–10% reduces hepatic fat significantly), exercise, and correction of metabolic risk factors. No licensed medication yet, but resmetirom (Rezdiffra) is approved in the US for NASH with fibrosis.
How is cirrhosis detected?
LFTs may be normal in compensated cirrhosis. Key markers: low albumin, low platelets (splenic sequestration), raised PT/INR, raised bilirubin. Confirmed by FibroScan, liver biopsy, or cross-sectional imaging showing nodular liver.
What is hepatic encephalopathy?
Neuropsychiatric syndrome from ammonia accumulation when the failing liver cannot detoxify protein waste. Presents as confusion, drowsiness, personality change, and asterixis. Treated with lactulose (reduces ammonia absorption) and rifaximin.

References

The clinical information on this page is drawn from peer-reviewed sources indexed by the US National Library of Medicine. Links go to the source so you can read it yourself.

  1. Hepatic Cirrhosis. In: StatPearls. Treasure Island (FL): StatPearls Publishing. NCBI Bookshelf NBK482419
  2. Acute Liver Failure. In: StatPearls. Treasure Island (FL): StatPearls Publishing. NCBI Bookshelf NBK482374

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Medical Disclaimer: This page is for general education only and does not replace professional medical advice. Always consult a qualified healthcare provider.