直肠癌是最常见的恶性肿瘤之一。临床工作中由于缺乏应有的警惕性，往往误诊误治，使许多病人失去及早根治的机会。笔者统计嘉兴市二院1989～1998年165例手术治疗的直肠癌病例中，误诊者78例，占472％，现分析如下：临床资料本组男48例，女性30例，最小27岁，最大76岁，年龄4O Rectal cancer is one of the most common malignant tumors. Due to the lack of due vigilance in clinical work, it is often misdiagnosed and mistreated, and many patients lose the opportunity to early cure. The author statistics of 189 cases of rectal cancer in 189 cases of Jiaxing City Second Hospital from 1989 to 1998, misdiagnosis of 78 cases, accounting for 472%, are analyzed as follows: Clinical data of this group of 48 males and 30 females, the minimum 27-year-old, the largest 76 years old, age 4O