What I need to know about Hepatitis B
On this page:
What is hepatitis B?
Hepatitis B is a liver disease.
 Hepatitis (HEP-ah-TY-tis) makes your liver swell and stops it from working right.
You need a healthy liver. The liver does many things to keep you alive. The liver fights infections and stops bleeding. It removes drugs and other poisons from your blood. The liver also stores energy for when you need it.
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What causes hepatitis B?
Hepatitis B is caused by a virus.
A virus is a germ that causes sickness. (For example, the flu is caused by a virus.) People can pass viruses to each other. The virus that causes hepatitis B is called the hepatitis B virus.
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How could I get hepatitis B?
Hepatitis B spreads by contact with an infected person's blood, semen, or other body fluid.
You could get hepatitis B by
having sex with an infected person without using a condom sharing drug needles having a tattoo or body piercing done with dirty tools that were used on someone else getting pricked with a needle that has infected blood on it (health care workers can get hepatitis B this way) living with someone who has hepatitis B sharing a toothbrush or razor with an infected person traveling to countries where hepatitis B is common
An infected woman can give hepatitis B to her baby at birth.
You can NOT get hepatitis B by
shaking hands with an infected person hugging an infected person sitting next to an infected person
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What are the symptoms?
Hepatitis B can make you feel like you have the flu.
You might
Some people have
dark yellow urine light-colored stools yellowish eyes and skin
Some people don’t have any symptoms.
If you have symptoms or think you might have hepatitis B, go to a doctor.
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What are the tests for hepatitis B?
To check for hepatitis B, the doctor will test your blood.
These tests show if you have hepatitis B and how serious it is.
The doctor will take some blood to check for hepatitis B.
The doctor may also do a liver biopsy.
A biopsy (BYE-op-see) is a simple test. The doctor removes a tiny piece of your liver through a needle. The doctor checks the piece of liver for signs of hepatitis B and liver damage.
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How is hepatitis B treated?
Treatment for hepatitis B may involve
A drug called interferon (in-ter-FEAR-on). It is given through shots. Most people are treated for 4 months. A drug called lamivudine (la-MIV-you-deen). You take it by mouth once a day. Treatment is usually for one year. 
Hepatitis B is treated through shots of medicine. A drug called adefovir dipivoxil (uh-DEH-foh-veer dih-pih-VOX-ill). You take it by mouth once a day. Treatment is usually for one year. Surgery. Over time, hepatitis B may cause your liver to stop working. If that happens, you will need a new liver. The surgery is called a liver transplant. It involves taking out the old, damaged liver and putting in a new, healthy one from a donor.
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How can I protect myself?
You can get the hepatitis B vaccine.
A vaccine is a drug that you take when you are healthy that keeps you from getting sick. Vaccines teach your body to attack certain viruses, like the hepatitis B virus.
The hepatitis B vaccine is given through three shots. All babies should get the vaccine. Infants get the first shot within 12 hours after birth. They get the second shot at age 1 to 2 months and the third shot between ages 6 and 18 months.
Older children and adults can get the vaccine, too. They get three shots over 6 months. Children who have not had the vaccine should get it.
You need all of the shots to be protected. If you are traveling to other countries, make sure you get all the shots before you go. If you miss a shot, call your doctor or clinic right away to set up a new appointment.
Vaccines protect you from getting hepatitis B.
You can also protect yourself and others from hepatitis B if you
People who touch blood at work should wear gloves to protect themselves from hepatitis B.
use a condom when you have sex don’t share drug needles with anyone wear gloves if you have to touch anyone’s blood don’t use an infected person’s toothbrush, razor, or anything else that could have blood on it make sure any tattooing or body piercing is done with clean tools
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For More Information
You can also get information about hepatitis B from these groups:
American Liver Foundation (ALF)
75 Maiden Lane
Suite 603
New York, NY 10038
Phone: 1–800–GO–Liver (465–4837), 1–888–4HEP–USA (443–7872), or 212–668–1000
Fax: 212–483–8179
Email: info@liverfoundation.org
Internet: www.liverfoundation.org
Hepatitis B Foundation
700 East Butler Avenue
Doylestown, PA 18901–2697
Phone: 215–489–4900
Fax: 215–489–4920
Email: info@hepb.org
Internet: www.hepb.org
Hepatitis Foundation International (HFI)
504 Blick Drive
Silver Spring, MD 20904–2901
Phone: 1–800–891–0707 or 301–622–4200
Fax: 301–622–4702
Email: hfi@comcast.net
Internet: www.hepfi.org
There are other types of hepatitis. The National Digestive Diseases Information Clearinghouse also has booklets about hepatitis A and hepatitis C:
You can get a free copy of each of these booklets by calling 1–800–891–5389 or by writing to
NDDIC
2 Information Way
Bethesda, MD 20892–3570
Hepatitis information for health professionals is also available.
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Acknowledgments
The individuals listed here provided editorial guidance or facilitated field testing for this publication. The National Digestive Diseases Information Clearinghouse would like to thank these individuals for their contribution.
Bruce Bacon, M.D.
Chair, Education Committee
American Liver Foundation
New York, NY
Luby Garza-Abijaoude, M.S., R.D., L.D.
Texas Department of Health
Austin, TX
Thelma Thiel, R.N., B.A.
Hepatitis Foundation International
Cedar Grove, NJ
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National Digestive Diseases Information Clearinghouse
2 Information Way
Bethesda, MD 20892–3570
Phone: 1–800–891–5389
TTY: 1–866–569–1162
Fax: 703–738–4929
Email: nddic@info.niddk.nih.gov
Internet: www.digestive.niddk.nih.gov
The National Digestive Diseases Information Clearinghouse (NDDIC) is a service of the National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK). The NIDDK is part of the National Institutes of Health of the U.S. Department of Health and Human Services. Established in 1980, the Clearinghouse provides information about digestive diseases to people with digestive disorders and to their families, health care professionals, and the public. The NDDIC answers inquiries, develops and distributes publications, and works closely with professional and patient organizations and Government agencies to coordinate resources about digestive diseases.
Publications produced by the Clearinghouse are carefully reviewed by both NIDDK scientists and outside experts.
This publication is not copyrighted. The Clearinghouse encourages users of this publication to duplicate and distribute as many copies as desired.
NIH Publication No. 07–4228
December 2006
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