Abstract:Abstract: Objective?To investigate the impact of concomitant diseases on the incidence of abdominal complications in patients with primary gastric cancer undergoing laparoscopic surgery.?Methods?The clinical data of 138 gastric cancer patients who underwent laparoscopic-assisted radical gastrectomy after abdominal surgery were retrospectively analyzed from January 2015 to January 2017. Among them, 62 patients had preoperative concomitant disease as the concomitant group, while the remaining 76 patients had no preoperative concomitant disease as the non-concomitant group. The incidence of concomitant diseases was analyzed. The incidence of postoperative abdominal complications and short-term survival were compared between the two groups.?Results?1 of the 62 patients had three diseases and 9 patients had two diseases. Mild anemia, hypertension, hypoalbuminemia and moderate anemia were common concomitant diseases. The incidence of intraperitoneal hemorrhage, anastomotic bleeding, abdominal infection, anastomotic fistula and incision infection in patients with concomitant disease were significantly higher than those in non-associated patients (P?0.05). The pancreatic fistula, there was no significant difference in the incidence of duodenal stump fistula, intestinal obstruction and chyle leakage (P?>?0.05). There were no significant differences in survival rates between 3 months, 6 months and 12 months in patients with or without concomitant disease (P?>?0.05).?Conclusion?Patients with minimally invasive gastric cancer with abdominal diseases associated with anemia, hypertension, hypoproteinemia, the incidence of postoperative abdominal complications, but does not influence the short-term survival.