Amirabad Pathobiology and Virology Laboratory


What Is Hepatitis B?

Date: 2 سال قبل

author: AmirAbad

What Is Hepatitis B?
Normally, the liver breaks down waste products in your blood. But when the liver is inflamed, it doesn’t do a good job of getting rid of waste products. This causes waste products to build up in your blood and tissues.
Hepatitis B is an infection of your liver. It’s caused by a virus. The virus is usually spread from person to person through contact with blood and/or body fluids of someone who has the infection.
What are the symptoms of hepatitis B?
Symptoms of hepatitis B can range from mild to severe.
The symptoms of hepatitis B may include:
·       Loss of appetite.
·       Nausea.
·       Vomiting.
·       Weakness and fatigue.
·       Abdominal pain (especially in the area around your liver).
·       Dark-colored urine.
·       Jaundice (the yellowing of the skin and the whites of the eyes).
·       Joint pain.
What causes hepatitis B?
Hepatitis B is caused by infection with the hepatitis B virus. You can get the virus if you have unprotected sexual contact with an infected partner. People who use intravenous (IV) drugs can get hepatitis B when they share needles with someone who has the virus. Health care workers (such as nurses, lab technicians, and doctors) can get hepatitis B if they are accidentally stuck with a needle that was used on an infected patient. The infection can also be passed from a mother to her baby during childbirth. You are also more likely to get hepatitis B if you travel to areas of the world where hepatitis B is common.
How is hepatitis B diagnosed?
There are three main ways to diagnose HBV infection. They include:
·       Blood tests: Tests of the blood serum (or plasma) shows how your body's immune system is responding to the virus. A blood test can also tell you if you are immune to HBV.
·       Abdominal ultrasound: An ultrasound uses sound waves to show the size and shape of your liver and how well the blood flows through it.
·         Liver biopsy: A small sample of your liver tissue is removed though a tiny incision and sent to a lab for analysis.
Can hepatitis B be prevented or avoided?
Get the hepatitis B vaccine (if you haven’t already been infected).
Use condoms every time you have sex.
Cover all open cuts or wounds.
Don’t share razors, toothbrushes, nail care tools, or pierced earrings with anyone.
Make certain that any needles for drugs, ear piercing, or tattoos -- or tools for manicures and pedicures -- are properly sterilized.
What are the long-term effects of hepatitis B?
·                     Becoming a hepatitis B carrier.
·                     Chronic hepatitis B infection.
·                     Cirrhosis (scarring of the liver).
·                     Liver cancer.
·                     Liver failure.
·                     Death.
How Is Hepatitis B Treated?
There's no cure for HBV. Doctors will advise someone with a hepatitis B infection on how to manage symptoms — like getting plenty of rest or drinking fluids.
In most cases, teens who get hepatitis B recover and may develop a natural immunity to future hepatitis B infections. Research is ongoing for more effective treatments and a cure for HBV.

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