Can a person with hepatitis B being treated during sex transmit the infection to their partner?

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Hello doctor! May I ask if a patient with hepatitis B who is being treated during sex can infect his or her partner? If yes, what is the amount of virus in the blood when tested? Ask your doctor for advice and answers. Thank you sincerely!
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Hello! Hepatitis B can be transmitted through blood, from mother to child, and sexually. People with hepatitis B in a state of treatment but have not yet controlled the amount of virus, the virus is still active, the virus level is still high, the risk of infection is higher, if the amount of virus is low, the risk of infection is low. If you want to know if your sexual partner is infected, you must have a blood test, if you did not have hepatitis B before and now have a positive result, it is likely that you have been infected.
However, you should not worry too much because about 95% of cases of acute hepatitis B virus infection, the body's immune system can fight and clear the virus within 6 months without treatment, only 5% The rest turn chronic.
If your sex partner is not infected, you should get the hepatitis B vaccine and have safe sex to avoid infection!
If you need more in-depth consultation, you can go to the hospital of Vinmec Health System to be examined and receive advice from a doctor. Thank you for trusting and sharing your concerns with Vinmec. Wish you all the best. Best regards!

Please dial HOTLINE for more information or register for an appointment HERE. Download MyVinmec app to make appointments faster and to manage your bookings easily.


Answered by Specialist I Vo Thi Thuy Trang - Gastrointestinal Endoscopy - Department of Medical Examination & Internal Medicine - Vinmec Da Nang International Hospital
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