Abstract:Objective:To explore the etiology, mechanism and treatment of diarrhea after pancreatoduodenectomy. Methods:Based on the clinical data of 159 cases of pancreatoduodenectomy performed in the recent one and half years, the pathogenesis of post-pancreatoduodenectomy diarrhea was analyzed and the effect of different treatments was observed. Results:Seventy-one cases had diarrhea, with an incidence of 44.7%. Tweenty-two cases had bacterial infection of the intestinal tract and 4 cases had fungus infection. The incidence of infection was 36.6%. In 64 cases diarrhea was relieved with effective treatment, accounting for 90.1% of all cases. Seven cases with chronic diarrhea had additional treatment with oral pancreatic enzyme and symptoms were relieved 2 weeks after treatment. Conclusions:Diarrhea is frequently observed in patients after pancreatoduodenectomy, and the majority of them can be cured with treatment selected according to the pathogenesis.