What are the causes of chronic viral hepatitis B?

Chronic hepatitis B virus is mainly caused by hepatitis B virus, can be transmitted through blood and blood products transmission, sexual contact, mother-to-child transmission and other ways of infection.

1, blood and blood products transmission

A very small amount of blood contaminated by hepatitis B virus into the human body will also cause infection, so if the blood with the virus through hemodialysis, blood transfusion, organ transplantation or sharing needles, razors and other ways into the human body, it will cause virus infection.

2, sexual contact with chronic

hepatitis B patients semen, vaginal secretions will contain the virus, if it is unprotected sexual contact, will also be infected.

3, mother-to-child transmission of

hepatitis B virus after maternal infection, the virus will infect the fetus through the placental barrier. Before and after a period of time in women give birth, the baby's skin or mucous membrane damage, contact with the mother's blood, amniotic fluid or vaginal secretions, will cause perinatal transmission. Close contact between mother and child after childbirth will also cause infection.