About Hepatitis B
Hepatitis B is caused by the hepatitis B virus, which is a liver infection. It can result in acute (short-term) or chronic (long-term) infection. The virus is primarily transmitted through bodily fluids, especially blood. It can also be transmitted through semen and vaginal fluids, but not through saliva.
People with increased risk of becoming infected with HBV and developing hepatitis B include:
- Health Care Workers who have contact with blood, needles, or body fluids at work.
- Men who have sex with men (MSM).
- People with multiple sex partners or have a history of sexually transmitted diseases.
- Injection drug users.
- Dialysis patients.
- Inmates and staff in correctional facilities.
- Travelers to areas with high rates of hepatitis B.
- Infants born to mothers who have hepatitis B.
- People who have diabetes, HIV, or hepatitis C.
Prevention: Hepatitis B vaccine is available to help prevent hepatitis B and is highly recommended for people at higher risk of hepatitis B.
Having increased risk of hepatitis B does not mean you will get hepatitis B. If you are in a higher risk group or are concerned about possible risk factors, it's always best to consult with your healthcare professional for personalized advice.
Hepatitis B may be acute, meaning symptoms last less than 6 months after infection. Some people do not have any noticeable symptoms. Chronic hepatitis B means it is a long-term infection. Some people with chronic hepatitis B do not have early symptoms and symptoms are noticed after hepatitis B has progressed.
Common early symptoms of hepatitis B include:
- Abdominal discomfort.
- Dark urine.
- Fatigue.
- Fever.
- Loss of appetite.
- Muscle weakness.
- Nausea.
As the condition progresses, other symptoms may occur, such as:
- Severe vomiting.
- Yellow eyes or skin (jaundice).
- Swollen stomach.
- Confusion (also called hepatic encephalopathy).
It's important to note that not everyone with hepatitis B will experience symptoms, especially in the early stages. Some people may have a silent infection and not show any noticeable signs. If you suspect you have been exposed to hepatitis B or are at risk, it is recommended to consult with a healthcare professional for proper screening, diagnosis and guidance. They can provide appropriate testing and treatment options based on your individual situation.
To diagnose hepatitis B, healthcare professionals commonly perform the following examinations, tests, and procedures:
- Medical and family history: Your doctor will ask about your symptoms and factors that may increase your risk of getting hepatitis B.
- Physical exam: During a physical exam, your doctor will check for signs of liver damage, such as changes in skin color, swelling in your lower legs or abdomen, and tenderness.
- Blood tests: A simple blood test is used to diagnose hepatitis B. It checks for different biomarkers and can determine if the infection is acute or chronic. Additional blood tests called liver function tests will check the general health of the liver.
Additional examinations, tests, and procedures may be recommended based on initial findings or individual factors. These may include:
- Liver ultrasound: This imaging test can show if there is any damage to your liver and assess its extent.
- Liver biopsy: In few cases, in may be necessary to take a sample of the liver to evaluate the level of liver damage.
It's important to consult with your healthcare professional for personalized advice regarding examinations, tests, and procedures for diagnosing and determining the severity of hepatitis B.
The goals of treatment for hepatitis B are to improve survival, prevent disease progression, and enhance the quality of life. To achieve these goals, the following approaches are recommended:
Acute Treatment
- Most people with acute hepatitis B do not require specific treatment for hepatitis B. Symptoms usually resolve on their own over several weeks.
- Avoidance of alcohol and certain medications: Alcohol and hepatotoxic drugs can worsen liver damage in HBV patients.
- Hepatitis B Immunization
- People who think they have been exposed to hepatitis B virus should contact their healthcare provider right away. In some cases, the healthcare provider may recommend:
- Hepatitis B vaccine to prevent infection
- Hepatitis B Immunoglobulin (HBIG) to help fight HBV in the body.
- These immunization therapies are most effective if given within 24 hours of contact (exposure to) hepatitis B virus. The best protection if receiving hepatitis B vaccine as a preventive measure (before exposure to the virus).
Chronic Treatment: People with chronic hepatitis B with blood tests that show that HBV is active and damaging the liver may need specific treatment for hepatitis B. This may include:
- Avoidance of alcohol and certain medications with liver side effects: Alcohol and hepatotoxic drugs can worsen liver damage in HBV patients.
- Medications:
- Nucleoside/nucleotide analogs (such as lamivudine, adefovir, entecavir, tenofovir): These antiviral drugs help suppress HBV replication, reducing viral load and liver inflammation.
- Interferon therapy: Interferons stimulate the immune system to fight against HBV. They have both antiviral and immunomodulatory effects.
- Combination therapy: In cases of drug resistance or suboptimal response, combining different antiviral medications may be considered to enhance efficacy.
- Strict adherence to medication regimen: Taking antiviral medications as prescribed is crucial to achieve optimal treatment outcomes.
- Regular monitoring: Blood tests (such as liver function tests and HBV DNA levels) are performed to monitor treatment response and adjust therapy if needed.
It's important to note that these recommendations should be discussed with a healthcare professional who can provide personalized advice based on individual circumstances. Medication dosing may be affected by many factors. Check with your health care professional about dosing for your individual situation. Side effects can occur. Check with your health care professional or read the information provided with your medication for side effect information.