Hepatitis B 245 positive is also known as hepatitis B surface antibody, hepatitis B E antibody, and hepatitis B core antibody positive, if it is a previous hepatitis B infection, it means that it is currently a healthy person, and if it is an acute hepatitis B infection, it may be currently recovering, and there is still a risk that the surface antigen will return to the positive side. Hepatitis B surface antibody positive, is not through the vaccine or a protective antibody produced after recovery from hepatitis B infection, the immunity to hepatitis B gained, can reduce the risk of hepatitis B infection. Hepatitis B E antibody and Hepatitis B core antibody positivity mostly indicate that the body has been infected with Hepatitis B, and the body produces antibodies due to viral infection, resulting in Hepatitis B E antibody positivity and Hepatitis B core antibody positivity. It should be noted that 245 positivity can also occur during the recovery period of acute hepatitis B infection, and it is recommended that the hepatitis B penta-analysis be repeated regularly to rule out the possibility of the hepatitis B surface antigen returning to the positive level. Hepatitis B 245-positive is recommended to consult a doctor in time, improve the IgG and IgM typing of hepatitis B core antibody under the guidance of a doctor, or ask the medical history, physical examination, etc. to determine whether it is a recent or previous infection of hepatitis B, and review the hepatitis B 5 regularly if necessary.