Positive 245 usually refers to positive 245 of hepatitis B. Positive 245 of hepatitis B does not necessarily mean that you will get liver cancer. Hepatitis B 245 refers to the second, fourth and fifth quantitative items of the hepatitis B two half or five quantitative items of hepatitis B, which represent the surface antibody, hepatitis B e antibody and hepatitis B core antibody respectively. If Hepatitis B 245 is positive, it means that Hepatitis B 2.5 or Hepatitis B 5 quantitatively indicates that Hepatitis B surface antibody is positive, Hepatitis B e antibody is positive and Hepatitis B core antibody is positive. In this case, it means that the patient’s body was once infected with hepatitis B virus, but the body has cleared the hepatitis B virus, and now the body is free of hepatitis B. At the same time, the body has protective antibodies, and the chance of the body being infected by hepatitis B virus again is obviously reduced. Generally, liver cancer is caused by DNA changes in liver cells due to hepatitis virus infection, and cirrhosis and other diseases induced by long-term drinking and smoking as well as unhealthy diet, which are not detected and treated in time, and will lead to high probability of lesions and formation of liver cancer. In daily life, one should pay more attention to one’s life and routine, eat regularly, do not smoke and drink, exercise more, and go to the hospital for checkups at regular intervals. When abnormalities are detected in the body, one should consult a doctor in time and actively cooperate with the doctor for treatment.