Personal experience in the treatment of 93 cases of cancer of the large bowel and rectal localization is reported 32 patients (A group) received blood transfusions, 61 patients (B group) hadn't any transfusions or autotransfusions. Postoperative morbidity was 34.37% in A group and 14.75% in B group. The Authors stress the basic importance of autotransfusions as well in patients surgically treated for colorectal cancer.