病毒性甲型肝炎在青少年中广泛流行,大多数痊愈,也有不典型的慢性经过。作者观察15～18岁男性病毒性甲型肝炎80例,随诊5～12月。根据临床流行病学资料,血清抗-HAVIgM 阳性确诊。为排除乙型肝炎均作 HBsAg 测定。生化检查包括测定胆红素,谷丙转氨酶(ALT)活力,蛋白沉淀试验。进行肝胆超声和红外线热象图检查。无黄疸型占10%,临床上 Viral hepatitis A is prevalent in adolescents and most are healed, with atypical chronic exacerbations. The authors observed 15 to 18-year-old male viral hepatitis A 80 cases were followed up for 5 to 12 months. According to clinical epidemiological data, serum anti-HAVIgM positive diagnosis. To exclude hepatitis B were HBsAg determination. Biochemical tests include the determination of bilirubin, alanine aminotransferase (ALT) activity, protein precipitation test. Hepatobiliary ultrasound and infrared thermography. No jaundice accounted for 10%, clinically