Hepatitis B surface antigen 250 is usually a positive result and is an indication of hepatitis B infection. Hepatitis B surface antigen is a shell-specific expression antigen of the hepatitis B virus, and a positive test result indicates infection with the hepatitis B virus. Hepatitis B infection should be further examined with the 5 indicators of hepatitis B and quantitative examination of the hepatitis B virus, liver ultrasound, liver function and other auxiliary tests, and the need for treatment and interventions should be determined according to the extent and type of the disease, and in combination with clinical symptoms. Usually, you should quit smoking and drinking, eat less greasy food, avoid staying up late, and live a regular life. If the disease is stable and does not need treatment, you should have regular checkups, and take appropriate treatment measures if there is any abnormality in time.