Background : NCCNâ??s guidelines for the diagnosis and treatment of rectal\ncancer suggest that accurate preoperative clinical staging of rectal cancer is\nvery important. Reliable preoperative evaluation is the key to the development\nof surgical protocols, in order to investigate the diagnostic value of digital\nrectal diagnosis for lymph node metastasis of middle and low rectal cancer.\nMethods : We prospectively performed digital rectal examination in 258\npatients with mid-low rectal cancer before operation, to analyze the distance\nfrom the lower margin of the tumor to the margin of the anus, the diameter\nof the invasion of the intestinal wall of the tumor, the accuracy between the\ngeneral type and depth of invasion of the tumor and the pathological results\nof the postoperative specimen, and the predictability of the lymph node metastasis\nrate of the rectal digital examination. Results : The results of the analysis\nshowed that the above indicators and postoperative pathological findings\nhave high accuracy. Conclusions : It is concluded that accurate and detailed\ndigital rectal examination before operation can predict lymph node metastasis\nrate of mid-low rectal cancer at a higher level and accurately.
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