According to the survey, about 9% to 10% people in Hong Kong have hepatitis B virus, that is, about 600 thousand people in Hong Kong have hepatitis B virus, of which 25% to 40% will develop into liver cancer or cirrhosis by the age of 40 to 60.While on the other hand, the public understanding of hepatitis b is very thin.The vast majority of people have no knowledge of the symptoms of hepatitis B, and even many patients who have been infected with the hepatitis B virus don't know their condition.In addition, people know little about the way of transmission, perniciousness and prevention and treatment measures of the hepatitis B virus.