ObjectiveTo investigate the influencing factor of intraoperative hypothermia during laparotomy.MethodsA total of 81 patients underwent laparotomy in our hospital from October 1, 2018 to January 1, 2019 were enrolled. The difference of preoperative baseline data and surgical data between the hypothermia and non-hypothermia groups was compared, and the influencing factor of intraoperative hypothermia during laparotomy was explored.ResultsOf the 81 patients, 32 patients occurred hypothermia during operation. There were no significant differences in gender, age, BMI, HGB, WBC count, PLT count, TB, AST, ALT, ALB, PT, operation time, postoperative hospital stay, and Clavien-Dindo grade between the hypothermia group and the non-hypothermia group (P>0.05), but there were significant differences in intraoperative infusion volume, intraoperative blood loss, and surgical mode (P<0.05). The intraoperative infusion volume and intraoperative blood loss in the hypothermia group were higher than those in the non-hypothermia operation group, and the proportion of hepatectomy was higher than that in the non-hypothermia group. The multivariate analysis show that the intraoperative blood loss, intraoperative infusion volume, and kind of operation were the risk factors for the hypothermia during laparotomy (P<0.05).ConclusionsIntraoperative hypothermia is related to intraoperative bleeding volume, intraoperative fluid infusion volume, and the kind of operation. Therefore, for patients with less bleeding, the intraoperative hypothermia can be reduced by limiting the volume of intraoperative fluid infusion. For those patients with more intraoperative bleeding, warming fluid infusion may reduce the incidence of intraoperative hypothermia.