The treatment of colorectal cancer is based on the treatment of clearing heat and relieving dampness, resolving blood stasis and detoxification, and promoting the flow of qi and internal organs, which is manifested as abdominal distension, abdominal pain, diarrhea, blood in stool, purple tongue and thick and greasy coating. The composition of Intestinal Decoction: Composed of more than ten Chinese herbs, including Comfrey, Diyu, Huang Lian, Scutellariae, Phyllostachys, Shi Mian Dian Dian, Sulcus, Coix Seed, Bitter Ginseng, Atractylodes, Hou Pu, Citrus, Rhubarb, and Ice. Method: Decoction machine decoction of 200ml/bag of enema solution, liquid temperature 39±0.5℃, deep enema, retained for 2 hours after surgery, once a day, 7 days for a course of treatment; 2-4 courses of treatment in a row. Second, other Chinese medicine enema therapy 1, comfrey, ground elm, stone see through, Huang Lian, scutellaria. Decoct about 100-200ml of slag, add 5g of ice chips and keep enema after daily stool, once a day. 15 days is a course of treatment. It is suitable for rectal cancer with blood in stool and pain. 2.Serpentis alba, Semen alba, Staphylin, Coix lacryma, Curcuma longa, Magnolia officinalis, Bitter ginseng, Atractylodes macrocephala, Dioscorea, Rhizoma lutea. 1 dose daily, 200ml of water decoction, reserved enema, 1 time daily. 15 days for 1 course of treatment. Suitable for patients with colorectal cancer. 3. Raw rhubarb, thick park, citrus aurantium, senna leaf, xuanhu. 1 dose daily, 100ml of water decoction, reserved enema, 1 time daily. 5-7 days for 1 course of treatment. Suitable for patients with incomplete intestinal obstruction of colorectal cancer.