1. What is Xiao Sanyang? Xiaosanyang refers to a state where two or more of the three indicators of hepatitis B virus surface antigen (HBsAg), hepatitis B virus e antigen (HBeAg) and hepatitis B virus core antibody (HBcAb) are positive. This state indicates that the human body has been infected with hepatitis B virus, but it does not necessarily mean that the patient has hepatitis B. 2. Harm of Pregnant Women with Small Three Yangs For pregnant women, the status of small three positives will increase the risk of fetal infection. If a pregnant woman develops small yang during pregnancy, she needs to seek medical treatment in time to protect her health.