With a period of 8--10 months between the beginning of troubles at the patient and the reception in hospital for treatment (= duration of anamnesis) the colorectal carcinoma patients come only still in 25--40% in the stages I and II to the therapy which then can be radical and curative. 20--30% of the patients at the time of diagnosis respectively at the start of therapy already are in stage IV with a 5-year-survival rate between 0 and 1%. An improvement of results is to expect from an earlier diagnosis, development of general arrangements for the decreasing of operative risk, improvement of anastomosis, postoperative adjuvant therapy, and an individual treatment scheduling.