First of all, it depends on which antiviral is used? Unplanned pregnancy during antiviral treatment is a common clinical situation. Whether or not the pregnancy continues depends on which antiviral was used. If you are on lamivudine, telbivudine, or tenofovir, there is no problem and you can continue the pregnancy. 2, if it is injected polyethylene glycol interferon, then it is recommended to terminate the pregnancy without hesitation, because interferon has the effect of causing fetal malformation. 3.If you are taking Entecavir or Adefovir, we have to evaluate whether it is a precious child or not. If it is a precious child, we do not recommend to terminate the pregnancy, but we have to do the evaluation at a later stage. How to assess whether to interrupt pregnancy? For example, a 40-year-old woman, married for 10 years, it is difficult to get pregnant, what about this child? 1. For this kind of precious child, we recommend not to interrupt the pregnancy, and at 4 or 5 months, we can check the genetic background through the available technology, and also check the imaging, and if there is really hydrocephalus, spina bifida, and serious malformations, then we will do the induced abortion. 2. If there is no problem in the examination, we then consider the possible effects of the drugs on the liver and kidney function of the fetus. Because drugs such as entecavir, it is 0.5mg amount itself is very small, through the placenta into the fetal body and how much? Will it cause malformation? To take a step back, even if malformation, because the total incidence of birth defects in our country is about 5.6%, which is very high, can you tell that this drug is related? But this is a study we can’t possibly do, we can’t take a pregnant woman and verify that this drug is not damaging to the fetus. Instead, if it’s a woman in her 20s who’s pregnant for the first time and is very, very concerned about fetal malformations, then terminate the pregnancy. Then get on a safe medication like tibivudine or tenofovir before you plan to get pregnant again, and then get pregnant again, and that problem is solved. So the question of whether to interrupt a pregnancy during antiviral treatment is relative, not absolute.