Hepatitis C infection. Computer illustration showing liver and close-up view of hepatitis C viruses.
Your liver is the largest organ inside your body. It helps your body digest food, store energy, and remove poisons. Hepatitis is an inflammation of the liver.
VirViruses cause most cases of hepatitis. The type of hepatitis is named for the virus that causes it; hepatitis A, hepatitis B, hepatitis C, hepatitis D and hepatitis E. Drug or alcohol use can also cause hepatitis. In other cases, your body mistakenly attacks healthy cells in the liver.
Some people who have hepatitis have no symptoms. Others may have
Some forms of hepatitis are mild, and others can be serious. Some can lead to scarring, called cirrhosis, or to liver cancer.
Sometimes hepatitis goes away by itself. If it does not, it can be treated with drugs. Sometimes hepatitis lasts a lifetime. Vaccines can help prevent some viral forms.
Hepatitis D is a viral infection that causes liver inflammation and damage. Inflammation is swelling that occurs when tissues of the body become injured or infected. Inflammation can damage organs.
Viruses invade normal cells in your body. Many viruses cause infections that can spread from person to person.
The hepatitis D virus is unusual because it can only infect you when you also have a hepatitis B virus infection. In this way, hepatitis D is a double infection. You can protect yourself from hepatitis D by protecting yourself from hepatitis B by getting the hepatitis B vaccine.
Hepatitis D spreads the same way that hepatitis B spreads, through contact with an infected person’s blood or other body fluids. The hepatitis D virus can cause an acute or chronic infection, or both.
Acute hepatitis D is a short-term infection. The symptoms of acute hepatitis D are the same as the symptoms of any type of hepatitis and are often more severe. Sometimes your body is able to fight off the infection and the virus goes away.
Chronic hepatitis D is a long-lasting infection. Chronic hepatitis D occurs when your body is not able to fight off the virus and the virus does not go away. People who have chronic hepatitis B and D develop complications more often and more quickly than people who have chronic hepatitis B alone.
Hepatitis D and hepatitis B infections may occur together as a coinfection or a superinfection. People can only become infected with hepatitis D when they also have hepatitis B.
A coinfection occurs when you get both hepatitis D and hepatitis B infections at the same time. Coinfections usually cause acute, or short-term, hepatitis D and B infections. Coinfections may cause severe acute hepatitis.
In most cases, people are able to recover from and fight off the acute hepatitis D and B infections and the viruses go away. However, in less than 5 percent of people with a coinfection, both infections become chronic and do not go away,
A superinfection occurs if you already have chronic hepatitis B and then become infected with hepatitis D. When you get a superinfection, you may have severe acute hepatitis symptoms.
Up to 90 percent of people with a superinfection are not able to fight off the hepatitis D virus, and develop chronic hepatitis D. As a result, these people will have both chronic hepatitis D and chronic hepatitis B.
Hepatitis D is not common in the United States. Hepatitis D is more common in other parts of the world, including Eastern and Southern Europe; the Mediterranean region and Middle East; parts of Asia, including Mongolia; Central Africa; and the Amazon River basin in South America.
Hepatitis D infection occurs only in people who have hepatitis B. People are more likely to have hepatitis D in addition to hepatitis B if they
In rare cases, acute hepatitis D can lead to acute liver failure, a condition in which the liver fails suddenly. Although acute liver failure is uncommon, hepatitis D and B infections are more likely to lead to acute liver failure than hepatitis B infection alone.
Chronic hepatitis D may lead to cirrhosis, liver failure, and liver cancer. People who have chronic hepatitis B and D are more likely to develop these complications than people who have chronic hepatitis B alone. Early diagnosis and treatment of chronic hepatitis B and D can lower your chances of developing serious health problems.
Cirrhosis is a condition in which the liver slowly breaks down and is unable to work normally. Scar tissue replaces healthy liver tissue, partly blocking the flow of blood through the liver. In the early stages of cirrhosis, the liver continues to work. As cirrhosis gets worse, the liver begins to fail.
Also called end-stage liver disease, liver failure progresses over months or years. With end-stage liver disease, the liver can no longer perform important functions or replace damaged cells.
Having chronic hepatitis B and chronic hepatitis D increases your chance of developing liver cancer. Your doctor may suggest blood tests and an ultrasound or other type of imaging test to check for liver cancer. Finding cancer at an early stage improves the chance of curing the cancer.
Most people with acute hepatitis D have symptoms, which may include
In contrast, most people with chronic hepatitis D have few symptoms until complications develop, which could be several years after they were infected. Some symptoms of cirrhosis include
The hepatitis D virus causes hepatitis D. The hepatitis D virus spreads through contact with an infected person’s blood or other body fluids. Contact can occur by
The hepatitis D virus rarely spreads from mother to child during birth.
You can’t get hepatitis D from
Doctors diagnose hepatitis D based on your medical history, a physical exam, and blood tests. If you have hepatitis D, your doctor may perform tests to check your liver.
Your doctor will ask about your symptoms and about factors that may make you more likely to get hepatitis D.
During a physical exam, your doctor will check for signs of liver damage such as
Doctors use blood tests to diagnose hepatitis D. Your doctor may order tests to check for liver damage, find out how much liver damage you have, or rule out other causes of liver disease.
Your doctor may order one or more blood tests to diagnose hepatitis D. A health care professional will take a blood sample from you and send the sample to a lab.
If you have chronic hepatitis D and hepatitis B, you could have liver damage. Your doctor may recommend tests to find out whether you have liver damage or how much liver damage you have—or to rule out other causes of liver disease. These tests may include
Doctors typically use liver biopsy only if other tests don’t provide enough information about the liver damage or disease. Talk with your doctor about which tests are best for you.
Doctors may treat chronic hepatitis D with medicines called interferons, such as peginterferon alfa-2a (Pegasys). Researchers are studying new treatments for hepatitis D. In addition, medicines for hepatitis B may be needed. These are usually medicines taken once daily by mouth.
If chronic hepatitis D leads to cirrhosis, you should see a doctor who specializes in liver diseases. Doctors can treat health problems related to cirrhosis with medicines, surgery, and other medical procedures. If you have cirrhosis, you have a greater chance of developing liver cancer. Your doctor may order an ultrasound or other type of imaging test to check for liver cancer.
If acute hepatitis D leads to acute liver failure, or if chronic hepatitis D leads to liver failure or liver cancer, you may need a liver transplant.
If you do not have hepatitis B, you can prevent hepatitis D infection by taking steps to prevent hepatitis B infection, such as getting the hepatitis B vaccine. If you do not get hepatitis B, you cannot get hepatitis D.
If you already have hepatitis B, you can take steps to prevent hepatitis D infection by
If you have hepatitis D, follow the steps above to avoid spreading the infection. Your sex partners should get a hepatitis B test and, if they aren’t infected, get the hepatitis B vaccine. Preventing hepatitis B will also prevent hepatitis D.
You can protect others from getting infected by telling your doctor, dentist, and other health care professionals that you have hepatitis D. Don’t donate blood or blood products, semen, organs, or tissue.
No vaccine for hepatitis D is currently available. The hepatitis B vaccine can prevent hepatitis D by preventing hepatitis B.
If you have hepatitis D, you should eat a balanced, healthy diet. Talk with your doctor about healthy eating. You should also avoid alcohol because it can cause more liver damage.
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