A survey was conducted on 250 children to detect hepatitis A virus.Our findings demonstrated that the levels of HAV-IgM, TLC, ALT, AST, Alk.ph, GGT, T. Bili, and D. Bili all had strong statistical significance between normal and HAV-infected children.While our results showed that there are no statistical differences between children after treatment in the third week and normal children in in the level of HAV-IgM, TLC, ALT, AST, Alk .ph ,GGT, T. Bili.and D. Bili.