If your child is found to be positive for hepatitis B before starting kindergarten, a liver function test and liver ultrasound should be done next. If both tests are normal, the child is currently a healthy carrier of hepatitis B and can attend school normally without treatment, followed by regular medical checkups every six months. If the liver function test is found to be abnormal and the child has hepatitis, he should be treated with liver protection and enzyme lowering therapy, and he should wait to enter school until his liver function is completely normal before considering going to school. If the liver function is still repeatedly abnormal after liver protection and enzyme reduction treatment, and the quantification of hepatitis B virus DNA is relatively high, the child can also consider anti-hepatitis B virus treatment, and after the anti-virus treatment, the liver function returns to normal, the child can normally enter school.