AIM:To analyze the clinical manifestations and risk fac-tors of complications in laparoscopic low anterior resection(LAR)for rectal cancer patients.METHODS:A series of 132 consecutive patients who received laparoscopic LAR for rectal cancer in our center were included.The etiology,diagnosis,treatment and prevention of rectal cancer were studied among the patients with surgery-related complications using both univariate and multivariate regression analysis.RESULTS:No conversion to open surgery was observed and 5 cases converted to hand-assisted laparoscopic operation.The overall morbidity rate was 20.5%.Complications occurred during the operation in 7 patients(5.3%),within 30 postoperative days in 24 patients(18.2%),and within 3 mo in 2 patients(1.5%).The most significant complications were anastomotic leak-age(9.1%)and anastomotic hemorrhage(5.3%).Sizeand location of tumor,pathological staging and preoperative nutrition were significant factors associated with LAR complications,while gender,age and pathological type showed no relevance.Binary logistics regression showed that the size and location of tumor,and pathological staging were independent factors of laparoscopic LAR.All the complications were treated during their onset of clinical manifestations by interventional or conservative therapy.CONCLUSION:Anastomotic leakage is a major com-plication in laparoscopic LAR.The complications may be associated with tumor size and site,and pathological stage.Interventional therapies are of value in the management of laparoscopic LAR complications. AIM: To analyze the clinical manifestations and risk fac-tors of complications in laparoscopic low anterior resection (LAR) for rectal cancer patients. METHODS: A series of 132 consecutive patients who received laparoscopic LAR for rectal cancer in our center were included. The etiology , diagnosis, treatment and prevention of rectal cancer were studied among the patients with surgery-related complications using both univariate and multivariate regression analysis .RESULTS: No conversion to open surgery was observed and 5 cases converted to hand-assisted laparoscopic operation. The overall morbidity rate was 20.5%. Applications occurred during the operation in 7 patients (5.3%), within 30 postoperative days in 24 patients (18.2%), and within 3 mo in 2 patients (1.5%). The most significant complications were anastomotic leak- age (9.1%) and anastomotic hemorrhage (5.3%). Size and location of tumor, pathological staging and preoperative nutrition were significant factors associated with LAR complications, while g ender, age and pathological type showed no relevance. Binary logistics regression showed that the size and location of tumor, and pathological staging were independent factors of laparoscopic LAR. All the complications were treated during their onset of clinical manifestations by interventional or conservative therapy. CONCLUSION : Anastomotic leakage is a major com-plication in laparoscopic LAR.Thecomplications may be associated with tumor size and site, and pathological stage.Interventional therapies are of value in the management of laparoscopic LAR complications.