直肠癌是直肠齿线以上直肠、乙状结肠交界部的癌 ,是胃肠道常见恶性肿瘤。临床多因长期便血而呈慢性消耗性损伤性病态 ,术后多呈现一派虚弱体象。术后低热究其病因病机特点总以“虚”“郁”“火”三因为着眼点 ,病属内伤发热。1　审证求因 :心脾两虚 ,虚火夹郁直肠癌因癌肿残蚀 Rectal cancer is more than the rectal serrated rectum, sigmoid junction of the cancer, is a common gastrointestinal cancer. Clinically due to long-term blood in the stool and chronic wasting lesions, showed more than one body after the weak body image. Postoperative fever in the etiology and pathogenesis characteristics of the total “virtual” “Yu” “fire” three because of the focus, the disease is an internal injury fever. 1 certification seeking cause: heart and spleen, virtual fire folder rectal cancer due to cancer erosion