The five-year relative survival rate for people whose colorectal cancer is treated in an early stage is greater than 90 percent.

Objective to discuss the colorectal cancer of patient at different age groups in clinical and endoscopy characteristic, in order to raise colorectal cancer early diagnosis rate.

Conclusions: rectal palpation and proctoscopy is simple, feasible and safe, it is most important way to diagnosis early rectal carcinoma.