Liver Cirrhosis: causes, treatment and precautions, a complete patient guide.

1. What is cirrhosis?

Cirrhosis is advanced scarring (fibrosis) of the liver caused by long-term injury. As scar tissue increases, the liver becomes less able to perform its normal functions and blood flow through the liver can become more difficult.

The liver has many important jobs, including processing nutrients and medicines, making important proteins and clotting factors, storing energy, helping with digestion, and processing substances from the blood.

Important: Early cirrhosis may cause few or no symptoms, so people can have significant liver disease without feeling unwell.

2. What causes cirrhosis?

Cirrhosis has many possible causes. Sometimes more than one factor contributes.

• Alcohol-associated liver disease: Long-term excessive alcohol exposure can damage liver cells.
• Fatty liver disease: Metabolic dysfunction-associated fatty liver disease (MASLD/MASH) can progress from fat accumulation and inflammation to fibrosis and cirrhosis.
• Chronic hepatitis B or C: Long-standing viral hepatitis can cause ongoing inflammation and scarring.
• Autoimmune liver diseases: The immune system can mistakenly attack liver cells or bile ducts.
• Inherited/metabolic conditions: Examples include haemochromatosis, Wilson disease and alpha-1 antitrypsin deficiency.
• Other causes: Certain medicines, bile-duct disorders and chronic heart-related liver congestion can also cause cirrhosis.

3. What symptoms can occur?

Symptoms vary from person to person. Some people have no symptoms until liver disease is advanced.

• Feeling tired or weak
• Poor appetite, nausea or unintentional weight loss
• Itching
• Yellowing of the skin or whites of the eyes (jaundice)
• Swelling of the abdomen (ascites) or legs/ankles (oedema)
• Easy bruising or bleeding
• Muscle loss or weakness
• Confusion, sleep changes or difficulty thinking in advanced disease

If you develop new or worsening symptoms, tell your doctor rather than waiting for your next routine visit.

4. What are the major complications?

• Ascites: Fluid collects in the abdomen, causing swelling and discomfort.
• Portal hypertension: Scarring increases resistance to blood flow through the liver and raises pressure in the portal vein.
• Varices and bleeding: Enlarged veins in the food pipe (oesophagus) or stomach can rupture and cause severe internal bleeding.
• Hepatic encephalopathy: Build-up of substances normally processed by the liver can affect thinking, memory, behaviour and alertness.
• Infections: People with advanced cirrhosis can be more vulnerable to serious infections.
• Liver cancer: Cirrhosis increases the risk of hepatocellular carcinoma, so regular surveillance is often recommended.
• Liver failure: Advanced disease may eventually cause the liver to stop performing essential functions.

5. How is cirrhosis diagnosed?

Your doctor will combine your medical history, physical examination and test results. No single test is appropriate for everyone.

• Blood tests — may assess liver function, blood counts, clotting and possible causes such as hepatitis viruses or autoimmune disease.
• Ultrasound — can assess liver appearance and look for fluid or other changes.
• Elastography / FibroScan — estimates liver stiffness, which can reflect fibrosis.
• CT or MRI — may be used when more detailed imaging is needed or to assess complications.
• Liver biopsy — sometimes used when the diagnosis or cause remains uncertain; it is not required for every patient.

6. Can cirrhosis be treated?

There is no simple medicine that removes established scar tissue. However, treatment can address the underlying cause, slow further injury, manage complications and reduce the risk of liver failure.

• Stop alcohol completely if alcohol-related liver disease is present.
• Treat hepatitis B or C when appropriate.
• Manage fatty liver disease with an individualized nutrition, weight and physical-activity plan.
• Use medicines prescribed for complications such as ascites, varices or hepatic encephalopathy.
• Have recommended surveillance for liver cancer and other complications.
• Consider specialist assessment for liver transplantation if liver failure or advanced decompensation develops.

7. Food, nutrition and daily habits

Good nutrition is an important part of cirrhosis care. People with cirrhosis can be at risk of malnutrition, so dietary advice should be individualized.

• Eat regular, balanced meals rather than prolonged fasting.
• Include adequate protein unless your treating clinician gives you a specific reason not to.
• If you have ascites or swelling, your doctor may advise reducing sodium (salt).
• Avoid alcohol completely.
• Avoid raw or undercooked shellfish and other foods that can increase infection risk.
• Ask your doctor or dietitian about the right calorie, protein and salt intake for you.
• Maintain a healthy weight where appropriate, while avoiding unplanned weight loss and muscle loss.

8. Medicines and supplements: be careful

A medicine that is safe for one person may not be appropriate for someone with cirrhosis. The liver and kidneys may handle medicines differently when liver disease is advanced.

• Tell every doctor and pharmacist that you have cirrhosis.
• Check before taking painkillers, sleeping medicines, cold medicines or other over-the-counter products.
• Do not start herbal remedies or dietary supplements without medical advice.
• Take prescribed medicines exactly as directed.
• Keep an updated list of all medicines and supplements you use.

9. Vaccination and infection prevention

Ask your healthcare team which vaccinations are appropriate for you. People with cirrhosis are commonly advised to stay up to date with recommended vaccines, including hepatitis A and B, influenza and pneumococcal vaccination, as appropriate for age and individual risk.

Good food hygiene is also important. Avoid raw or undercooked shellfish and seek medical advice promptly for fever or other signs of infection.

10. Regular follow-up matters

Cirrhosis is a long-term condition. Even when you feel well, regular monitoring can identify complications early.

• Attend scheduled liver-function and blood-test reviews.
• Follow your doctor's plan for ultrasound or other liver-cancer surveillance.
• Report increasing abdominal swelling, leg swelling, jaundice, bleeding or changes in alertness.
• Ask whether you need review by a hepatologist or gastroenterologist.
• Discuss transplant evaluation if your doctor feels the disease is becoming advanced.

11. Seek urgent medical attention if…

These symptoms can indicate serious complications such as gastrointestinal bleeding, infection, severe hepatic encephalopathy or worsening liver failure.

12. Common patient questions

Can cirrhosis be reversed?

Established cirrhosis is generally considered permanent scarring. Treating the underlying cause can slow or stop further damage and, in some settings, improve liver health, but established advanced scar tissue cannot simply be removed.

Can I drink alcohol occasionally?

If you have cirrhosis, the safest recommendation is complete avoidance of alcohol.

Do I need to stop eating protein?

Usually no. Adequate protein is important for maintaining muscle. Your doctor or dietitian can tailor the amount to your situation.

Does everyone with cirrhosis need a liver transplant?

No. Many people are managed for years without transplantation. Transplant evaluation is considered when liver disease becomes advanced or the liver can no longer function adequately.

Can I exercise?

Physical activity is generally encouraged when tolerated, but the type and intensity should be individualized, particularly if you have weakness, ascites or other complications.