Whether a positive hepatitis B test is serious or not depends on the specific item that is positive. If the positive test is for the second of the five hepatitis B items, the hepatitis B surface antibody is not a serious category. This is because the surface antibody of hepatitis B is a kind of protective antibody, and a positive result can guarantee that you will not be infected with hepatitis B in the future, and you are not currently infected with the hepatitis B virus, so there is no need to worry about this situation. If the positive is the first of the five hepatitis B surface antigen, it means that the state of hepatitis B infection is now, compared to people who do not have hepatitis B, this is likely to be a serious state, because the hepatitis B virus infection of the human body may cause related damage, and is an infectious disease. But it is not serious, and it depends specifically on whether there is any related damage to the liver or other organs. If the liver function is normal and the liver ultrasound also shows that the liver form is basically normal, it means that the hepatitis B virus has not caused related damage to the body, and it is a state of hepatitis B virus carriage, and this situation can not be called serious. Only when there is inflammation in the liver and changes in the shape of the liver to the extent of cirrhosis or related complications, then it can be called serious.