对直肠癌误诊为肛裂1例分析如下。1病历摘要男,34岁。因排便疼痛6个月初次就诊。6个月来排便时肛门疼痛,排便困难,粪便成形,软,有时表面有少许新鲜血液及黏液,无脓血便,无腹痛腹胀,有“便时疼痛,便后缓解,后又疼痛”的特点,直肠指检发现陈旧性肛裂,因患者拒绝手术给予止痛药对 Rectal cancer misdiagnosed as anal fissure 1 case analysis is as follows. 1 medical record summary male, 34 years old. Defecation pain due to 6 months initial visit. 6 months to defecate anal pain, defecation, feces forming, soft, and sometimes the surface a little fresh blood and mucus, no abscesses and bloody stools, no abdominal pain bloating, there is “easy to pain, then ease, then pain” feature , Rectal examination found that old anal fissure, because patients refused to give painkillers surgery