我院1970～1979年共收治大肠癌404例,其中并发肠梗阻120例(30％)。现对引起梗阻的有关临床问题提出讨论。临床资料本组病例男72例,女48例。年龄19～74岁,41～70岁占72.5％,其发病年龄比单纯大肠癌者要高。梗阻在右半结肠17例,左半结肠103例。癌灶在结肠肝曲者梗阻发病率最高,为75％, In our hospital from 1970 to 1979, a total of 404 cases of colorectal cancer were treated, including 120 cases (30%) of intestinal obstruction. Now we will discuss the clinical issues that cause obstruction. The clinical data of this group of patients were 72 males and 48 females. The age ranged from 19 to 74 years and the age of 41 to 70 years accounted for 72.5%. The age of onset was higher than that of colorectal cancer alone. Obstruction occurred in 17 cases in the right colon and 103 cases in the left colon. The incidence of obstruction in colonic liver lesions was highest, 75%.