肛门直肠指诊术是临床常用的一种简便而又重要的检查方法。熟练地掌握这种检查方法,对肛肠外科、泌尿外科等专科疾病的早期诊断具有重要意义。例如:80%的直肠癌可在直肠指诊时被发现;而在直肠癌延误诊断的病例中,约有85%是由于未作直肠指诊。现结合临床体会作一介绍,以引起重视。一、肛门直肠解剖(图1) 肛管是消化道的末端,长约3厘米,其下端称为肛门,上端与直肠相连接。左右两侧为坐骨直肠窝,男性在前面与前列腺及尿道相毗邻,女性则前面为阴道,后面为尾骨。肛管处有两种肌肉包绕:一为随意 Anal digital rectal examination is clinically used as a simple and important method of inspection. Proficiency in this method of inspection, anorectal surgery, urology and other specialist diseases early diagnosis is of great significance. For example, 80% of rectal cancers are detectable at the time of digital rectal exams, and about 85% of the delayed diagnosis of rectal cancers are due to undetected fingerprints. Now combined with clinical experience to make an introduction to attract attention. Anorectal dissection (Figure 1) The anal canal is the end of the digestive tract, about 3 cm, the lower end is called the anus, the upper end connected with the rectum. Right and left for the ischial rectal fossa, men in front of the prostate and urethra adjacent to the female in front of the vagina, followed by the coccyx. There are two kinds of muscle around the anal canal: one is free