Hepatitis B is a virus, or infection, that causes liver disease and inflammation of the liver. Viruses can cause sickness. For example, the flu is caused by a virus. People can pass viruses to each other.
Inflammation is swelling that occurs when tissues of the body become injured or infected. Inflammation can cause organs to not work properly.
The liver is an organ that does many important things. You cannot live without a liver.
The liver
Anyone can get hepatitis B, but those more likely to are people who
Also, men who have sex with men are more likely to get hepatitis B.
You could get hepatitis B through contact with an infected person's blood, semen, or other body fluid. This contact could occur by
A baby cannot get hepatitis B from breast milk.
Most people do not have any symptoms of hepatitis B. Adults and children ages 5 and older may have one or more of the following symptoms:
When symptoms occur, they can begin 2 to 5 months after coming into contact with the virus. See a doctor right away if you or a child in your care has symptoms of hepatitis B.
Acute hepatitis B is a short-term infection with the hepatitis B virus. Symptoms usually last several weeks but they can last up to 6 months. The infection sometimes clears up because your body is able to fight off the infection and get rid of the virus. Most healthy adults and children older than 5 who have hepatitis B get better without treatment.
Chronic hepatitis B is a long-lasting infection with the hepatitis B virus. Chronic hepatitis B occurs when the body can't get rid of the hepatitis B virus. Children, especially infants, are more likely to get chronic hepatitis B, which usually has no symptoms until signs of liver damage appear.
Without treatment, chronic hepatitis B can cause liver cancer or severe liver damage that leads to liver failure. Liver failure occurs when the liver stops working properly.
A blood test will show if you have hepatitis B. Blood tests are done at a doctor's office or outpatient facility. A blood sample is taken using a needle inserted into a vein in your arm or hand. The blood sample is sent to a lab to test for hepatitis B.
If you are at higher risk of getting hepatitis B, get tested. If you are pregnant, you should also get tested. Many people with hepatitis B do not know they are infected. Early diagnosis and treatment can help prevent liver damage.
Your doctor may suggest getting a liver biopsy if chronic hepatitis B is suspected. A liver biopsy is a test to take a small piece of your liver to look for liver damage. The doctor may ask you to stop taking certain medicines before the test. You may be asked to fast for 8 hours before the test.
During the test, you lie on a table with your right hand resting above your head. Medicine is applied to numb the area where the biopsy needle will be inserted. If needed, sedatives and pain medicine are also given. The doctor uses a needle to take a small piece of liver tissue. After the test, you must lie on your right side for up to 2 hours. You will stay 2 to 4 hours after the test before being sent home.
A liver biopsy is performed at a hospital or outpatient center by a doctor. The liver tissue is sent to a special lab where a doctor looks at the tissue with a microscope and sends a report to your doctor.
Hepatitis B is not usually treated unless it becomes chronic. Chronic hepatitis B is treated with medicines that slow or stop the virus from damaging the liver.
Your doctor will choose medicines or a combination of medicines that are likely to work for you. The doctor will closely watch your symptoms and schedule regular blood tests to make sure treatment is working.
Medicines given by shots include
Medicines taken by mouth include
The length of treatment varies. Talk with your doctor before taking other prescription medicines and over-the-counter medicines.
A liver transplant may be necessary if chronic hepatitis B causes severe liver damage that leads to liver failure. Symptoms of severe liver damage include the symptoms of hepatitis B and
Liver transplant is surgery to remove a diseased or injured liver and replace it with a healthy one from another person, called a donor. If your doctors tell you that you need a transplant, you should talk with them about the long-term demands of living with a liver transplant.
A team of surgeons-doctors who specialize in surgery-performs a liver transplant in a hospital. You will learn how to take care of yourself after you go home and about the medicines you'll need to take to protect your new liver. Medicines taken after liver transplant surgery can prevent hepatitis B from coming back.
Having hepatitis B increases your risk for getting liver cancer, so your doctor may suggest an ultrasound test of the liver every 6 to 12 months. Finding cancer early makes it more treatable. Ultrasound is a machine that uses sound waves to create a picture of your liver. Ultrasound is performed at a hospital or radiology center by a specially trained technician. The image, called a sonogram, can show the liver's size and the presence of cancerous tumors.
You can avoid getting hepatitis B by receiving the hepatitis B vaccine.
Vaccines are medicines that keep you from getting sick. Vaccines teach the body to attack specific viruses and infections. The hepatitis B vaccine teaches your body to attack the hepatitis B virus.
Since the 1980s, a hepatitis B vaccine has been available and should be given to newborns and children in the United States. Adults at higher risk of getting hepatitis B should also get the vaccine.
The hepatitis B vaccine is given in three shots over 6 months. You must get all three hepatitis B vaccine shots to be fully protected.
If you are traveling to countries where hepatitis B is common, try to get all the shots before you go. If you don't have time to get all the shots before you travel, get as many as you can. Even one shot may provide some protection against the virus.
You can protect yourself and others from getting hepatitis B if you
If you are pregnant and have hepatitis B, tell the doctor and staff who deliver your baby. The hepatitis B vaccine and hepatitis B immune globulin should be given to your baby right after birth. The vaccine will greatly reduce the chance of your baby getting the infection.
See your doctor right away if you think you have been in contact with the hepatitis B virus. A dose of the hepatitis B vaccine taken with a medicine called hepatitis B immune globulin may protect you from getting sick if taken shortly after coming into contact with the hepatitis B virus.
If you have chronic hepatitis B, you should do things to take care of yourself, including eating a healthy diet. Avoid drinking alcohol, which can harm the liver. Talk with your doctor before taking vitamins and other supplements.
The National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) and other components of the National Institutes of Health (NIH) conduct and support research into many diseases and conditions.
Clinical trials are part of clinical research and at the heart of all medical advances. Clinical trials look at new ways to prevent, detect, or treat disease. Researchers also use clinical trials to look at other aspects of care, such as improving the quality of life for people with chronic illnesses. Find out if clinical trials are right for you .
Clinical trials that are currently open and are recruiting can be viewed at www.ClinicalTrials.gov
-NIH