Rectal cancer belongs to the category of “locked anus and hemorrhoids” in Chinese medicine, which is a malignant tumor occurring in the rectum of anal canal, and it can be treated with Sophora Jiao Diyu Pill, Taohong Siwu Tang, Sijunzi Tang and Zhenyi Tang and other proprietary Chinese medicines or traditional Chinese medicines formulas after identification by traditional Chinese medicine practitioners. 1. Sophora Jiao Di Yu Pill: It is suitable for the evidence of dampness-heat embodiment (dampness and heat evils accumulate with each other in the body), with symptoms such as anal swelling, increased frequency of bowel movement, dark-red blood in stools, urgency and heaviness afterward (discomfort in the lower abdomen, wanting to defecate very much, and feeling of incomplete defecation after defecation), and dysentery of reddish-white, pusy and bloody blood, etc. It has the effect of clearing away heat and inducing dampness. 2. Tao Hong Si Wu Tang is suitable for Qi stagnation and blood stasis syndrome, which is characterized by bulging perianal swelling, hardness to touch, pain and refusal to be pressed, purplish-colored blood in the stool, urgency and heaviness after defecation, difficulty in defecation, etc. It has the function of promoting Qi and activating blood circulation. 3. Sijunzi Tang combined with Zengyi Tang: It is suitable for the symptoms of deficiency of qi and yin, such as lack of color, fatigue, emaciation, difficulty in defecation, purplish-colored blood in the stool, heartburn, dryness of the mouth, night sweating (sweating abnormally after falling asleep, but sweating stops after waking up), insomnia, etc. It has the effects of benefiting the qi and nourishing the yin and clearing heat and removing toxins. After the appearance of the above symptoms should be timely consultation, under the guidance of a professional physician to identify the use of the above drugs, do not take on their own, so as not to cause damage to the organism.