1. All kinds of egg concentration methods can improve the detection rate, but the number of parasitic worms and clinical manifestations should be considered in the diagnosis of fasciolosis. The former can get a rough impression by counting eggs, and the red blood cell count and hemoglobin of patients often decrease slightly, while the white blood cell count increases slightly, eosinophils can increase to10% ~ 20%, even up to 40%, and fecal occult blood test is occasionally positive. The eggs of Zingiber officinale can be found by direct smear method or precipitation egg collection method, the former is easy to miss the diagnosis of mild infection, and the latter can improve the detection rate, and the quantitative transparency method (improved Kato smear method) can also be used for qualitative and egg counting. 2.X-ray examination shows skeletal growth retardation or dwarfism. 3. Physical examination shows that abdominal distension, intestinal peristalsis and enhanced bowel sounds are special signs of this disease. Severe patients have eyelid and systemic edema, accompanied by ascites.