Cirrhosis is a late stage of scarring (fibrosis) of the liver caused by many forms of liver diseases and conditions, such as hepatitis and chronic alcoholism.
Each time your liver is injured — whether by disease, excessive alcohol consumption or another cause — it tries to repair itself. In the process, scar tissue forms. As cirrhosis progresses, more and more scar tissue forms, making it difficult for the liver to function (decompensated cirrhosis). Advanced cirrhosis is life-threatening.
The liver damage done by cirrhosis generally can't be undone. But if liver cirrhosis is diagnosed early and the cause is treated, further damage can be limited and, rarely, reversed.
Symptoms
Cirrhosis often has no signs or symptoms until liver damage is extensive. When signs and symptoms do occur, they may include:
Fatigue
Easily bleeding or bruising
Loss of appetite
Nausea
Swelling in your legs, feet or ankles (edema)
Weight loss
Itchy skin
Yellow discoloration in the skin and eyes (jaundice)
Fluid accumulation in your abdomen (ascites)
Spiderlike blood vessels on your skin
Redness in the palms of the hands
For women, absent or loss of periods not related to menopause
For men, loss of sex drive, breast enlargement (gynecomastia) or testicular atrophy
Confusion, drowsiness and slurred speech (hepatic encephalopathy)
Causes
A wide range of diseases and conditions can damage the liver and lead to cirrhosis.
Some of the causes include:
Chronic alcohol abuse
Chronic viral hepatitis (hepatitis B, C and D)
Fat accumulating in the liver (nonalcoholic fatty liver disease)
Iron buildup in the body (hemochromatosis)
Cystic fibrosis
Copper accumulated in the liver (Wilson's disease)
Poorly formed bile ducts (biliary atresia)
Alpha-1 antitrypsin deficiency
Inherited disorders of sugar metabolism (galactosemia or glycogen storage disease)
Genetic digestive disorder (Alagille syndrome)
Liver disease caused by your body's immune system (autoimmune hepatitis)
Destruction of the bile ducts (primary biliary cirrhosis)
Hardening and scarring of the bile ducts (primary sclerosing cholangitis
Infection, such as syphilis or brucellosis
Medications, including methotrexate or isoniazid
Risk factors
Drinking too much alcohol. Excessive alcohol consumption is a risk factor for cirrhosis.
Being overweight. Being obese increases your risk of conditions that may lead to cirrhosis, such as nonalcoholic fatty liver disease and nonalcoholic steatohepatitis.
Having viral hepatitis. Not everyone with chronic hepatitis will develop cirrhosis, but it's one of the world's leading causes of liver disease.
Complications
Complications of cirrhosis can include:
High blood pressure in the veins that supply the liver (portal hypertension).Cirrhosis slows the normal flow of blood through the liver, thus increasing pressure in the vein that brings blood to the liver from the intestines and spleen.
Swelling in the legs and abdomen. The increased pressure in the portal vein can cause fluid to accumulate in the legs (edema) and in the abdomen (ascites). Edema and ascites also may result from the inability of the liver to make enough of certain blood proteins, such as albumin.
Enlargement of the spleen (splenomegaly). Portal hypertension can also cause changes to and swelling of the spleen, and trapping of white blood cells and platelets. Decreased white blood cells and platelets in your blood can be the first sign of cirrhosis.
Bleeding. Portal hypertension can cause blood to be redirected to smaller veins. Strained by the extra pressure, these smaller veins can burst, causing serious bleeding. Portal hypertension may cause enlarged veins (varices) in the esophagus (esophageal varices) or the stomach (gastric varices) and lead to life-threatening bleeding. If the liver can't make enough clotting factors, this also can contribute to continued bleeding.
Infections. If you have cirrhosis, your body may have difficulty fighting infections. Ascites can lead to bacterial peritonitis, a serious infection.
Malnutrition. Cirrhosis may make it more difficult for your body to process nutrients, leading to weakness and weight loss.
Buildup of toxins in the brain (hepatic encephalopathy). A liver damaged by cirrhosis isn't able to clear toxins from the blood as well as a healthy liver can. These toxins can then build up in the brain and cause mental confusion and difficulty concentrating. With time, hepatic encephalopathy can progress to unresponsiveness or coma.
Jaundice. Jaundice occurs when the diseased liver doesn't remove enough bilirubin, a blood waste product, from your blood. Jaundice causes yellowing of the skin and whites of the eyes and darkening of urine.
Bone disease. Some people with cirrhosis lose bone strength and are at greater risk of fractures.
Increased risk of liver cancer. A large proportion of people who develop liver cancer have pre-existing cirrhosis.
Acute-on-chronic cirrhosis. Some people end up experiencing multiorgan failure. Researchers now believe this is a distinct complication in some people who have cirrhosis, but they don't fully understand its causes.
Prevention
Reduce your risk of cirrhosis by taking these steps to care for your liver:
Do not drink alcohol if you have cirrhosis. If you have liver disease, you should avoid alcohol.
Eat a healthy diet. Choose a plant-based diet that's full of fruits and vegetables. Select whole grains and lean sources of protein. Reduce the amount of fatty and fried foods you eat.
Maintain a healthy weight. An excess amount of body fat can damage your liver. Talk to your doctor about a weight-loss plan if you are obese or overweight.
Reduce your risk of hepatitis. Sharing needles and having unprotected sex can increase your risk of hepatitis B and C. Ask your doctor about hepatitis vaccinations.
Diagnosis
People with early-stage cirrhosis of the liver usually don't have symptoms. Often, cirrhosis is first detected through a routine blood test or checkup. To help confirm a diagnosis, a combination of laboratory and imaging tests is usually done.
Tests
Your doctor may order one or more tests that may suggest a problem with your liver, including:
Laboratory tests. Your doctor may order blood tests to check for signs of liver malfunction, such as excess bilirubin, as well as for certain enzymes that may indicate liver damage. To assess kidney function, your blood is checked for creatinine. You'll be screened for the hepatitis viruses. Your international normalized ratio (INR) is also checked for your blood's ability to clot.
Based on the blood test results, your doctor may be able to diagnose the underlying cause of cirrhosis. He or she can also use blood tests to help identify how serious your cirrhosis is.
Imaging tests. Magnetic resonance elastography (MRE) may be recommended. This noninvasive advanced imaging test detects hardening or stiffening of the liver. Other imaging tests, such as MRI, CT and ultrasound, may also be done.
Biopsy. A tissue sample (biopsy) is not necessarily needed for diagnosis. However, your doctor may use it to identify the severity, extent and cause of liver damage.
If you have cirrhosis, your doctor is likely to recommend regular diagnostic tests to monitor for signs of disease progression or complications, especially esophageal varices and liver cancer. Noninvasive tests are becoming more widely available for monitoring.
Treatment
Treatment for cirrhosis depends on the cause and extent of your liver damage. The goals of treatment are to slow the progression of scar tissue in the liver and to prevent or treat symptoms and complications of cirrhosis. You may need to be hospitalized if you have severe liver damage.
Treatment for the underlying cause of cirrhosis
In early cirrhosis, it may be possible to minimize damage to the liver by treating the underlying cause. The options include:
Treatment for alcohol dependency. People with cirrhosis caused by excessive alcohol use should try to stop drinking. If stopping alcohol use is difficult, your doctor may recommend a treatment program for alcohol addiction. If you have cirrhosis, it is critical to stop drinking since any amount of alcohol is toxic to the liver.
Weight loss. People with cirrhosis caused by nonalcoholic fatty liver disease may become healthier if they lose weight and control their blood sugar levels.
Medications to control hepatitis. Medications may limit further damage to liver cells caused by hepatitis B or C through specific treatment of these viruses.
Medications to control other causes and symptoms of cirrhosis. Medications may slow the progression of certain types of liver cirrhosis. For example, for people with primary biliary cirrhosis that is diagnosed early, medication may significantly delay progression to cirrhosis.
Other medications can relieve certain symptoms, such as itching, fatigue and pain. Nutritional supplements may be prescribed to counter malnutrition associated with cirrhosis and to prevent weak bones (osteoporosis).
