Objective To analyse the results of peritoneal lavage cytology and microbiology in patients with total laparoscopic resection for colorectal cancer by NOSES. Methods Examination of cytology and microbiology of peritoneal lavage were performed for thirty colorectal cancer patients who underwent total laparoscopic resection by NOSES from January 2016 to April 2018, then compared with the other studies reported about peritoneal lavage for cytology and microbiology of open and laparoscopic radical resection for...