What Are the Causes of Hepatitis B?

The cause of hepatitis B is infection with the hepatitis B virus, which may be transmitted through blood, mother-to-child, sexual contact, and other routes. Patients are advised to actively seek treatment after a definitive diagnosis. Here are the main transmission routes:

1. Blood Transmission:

The hepatitis B virus primarily exists in the blood. If a patient's blood comes into contact with products containing the hepatitis B virus, such as through accidental transfusion of blood products infected with the virus, it may lead to the virus entering the body and infecting the individual.

2. Mother-to-Child Transmission:

The hepatitis B virus can be present in a mother's blood. If the mother has the hepatitis B virus, during childbirth, if the fetus comes into contact with the virus, it may also lead to infection.

3. Sexual Contact Transmission:

The hepatitis B virus can be present in bodily fluids such as semen, vaginal secretions, and breast milk. Unprotected sexual contact with an infected individual that results in skin or mucous membrane damage may also lead to infection with the hepatitis B virus.

4. Other Routes:

Accidental contact with the blood or bodily fluids of a hepatitis B virus carrier may also lead to infection.

Patients are advised to develop good habits in daily life and avoid close contact with hepatitis B virus carriers, such as sharing razors, pedicure knives, or engaging in activities like tattooing, to prevent cross-infection. Patients can take antiviral medications under the guidance of a doctor, such as Entecavir Dispersible Tablets or Tenofovir Alafenamide Fumarate Tablets, which can inhibit viral replication and reduce liver damage caused by the virus.