临床上常将无肝炎症状、体征,肝功能检测正常、无肝炎病史,仅HBsAg阳性和经6个月观察无变化者称之为无症状携带者。 无症状HBsAg携带者分为3类:①患过肝炎而本人全然不知。因其临床症状和肝脏损害轻微且很快痊愈,仪表现为病后的HBsAg携带状态。②健康携带者。经多次反复化验肝功能均属正常,无任何症状体征,甚至作肝活检时亦未见病理损害,肝组织结 Often no clinical symptoms of hepatitis, signs, liver function tests were normal, no history of hepatitis, only HBsAg positive and no change after 6 months of observation were called asymptomatic carriers. Asymptomatic HBsAg carriers are divided into three categories: ① I have had hepatitis and I totally do not know. Because of its clinical symptoms and liver damage minor and quickly recovered, the instrument is now sick HBsAg carrier status. ② health carriers. After repeated tests of liver function are normal, no symptoms and signs, and even liver biopsy did not see the pathological damage, liver tissue