The incidence of rectal cancer is high, among which young people and low rectal cancer account for a high proportion. Low rectal cancer has a high recurrence rate after surgery due to its location. The treatment of local recurrence after postoperative radiotherapy for rectal cancer is tricky, and the prevention of recurrence becomes a concern for patients, and three aspects can reduce the possibility of recurrence. First of all: adjustment of dietary habits, balanced nutrition is important, and strict control of intake. Avoid the following types of food: 1, avoid eating spicy, fried, pickled food: such as chili, mustard; fries, fried fish, bacon, sauerkraut and other foods; 2, avoid eating “hairy food”: experiments have shown that the recurrence rate of patients who often consume food such as pig’s head, shrimp and crab, deer antler, onion and garlic is higher than those who do not or less; 3, avoid eating gas-producing food: drinking large amounts of Carbonated drinks, beer will produce too much carbon dioxide, resulting in poor bowel movements; 4, avoid eating crude fiber: high fiber content, easy to cause obstruction of the bowel opening; 5, tobacco and alcohol is an absolute taboo. Furthermore: moderate exercise and reasonable fitness activities: patients are relatively weak after post-operative radiotherapy for rectal cancer, patients and their families think they should rest completely, the right way is to exercise appropriately to not feel fatigue as the standard. Appropriate fitness can promote metabolism, improve blood circulation, and keep the stool from accumulating in the body, so as to reduce the possibility of recurrence. Lastly: the adjustment of Chinese medicine. There are two aspects: 1. Long-term adherence to the regulation of cream formula: the main regulation of physique, Chinese physique is roughly divided into nine types, among which phlegm-damp type, blood stasis type and other types are more prone to disease, and rectal cancer patients have obvious physiological damage after surgery, radiotherapy and chemotherapy. On top of the original physique, there are types of deficiency of spleen and kidney, liver and kidney yin deficiency, damp-heat infusion, etc. Patients often feel tired and weak without energy, diarrhea or constipation, abdominal distension, vague abdominal pain, or dry and bitter mouth or dry mouth without appetite, and even if there are no symptoms, patients should adjust the tonic from time to time to change the physique type and reduce the chance of recurrence. Due to the poor taste of tonics, many patients are unable to adhere to them. After the doctor’s treatment, the Chinese herbal formula prescribed according to different patients’ physique is adjusted into edible paste, and adhering to it has a preventive effect on recurrence. 2.After rectal cancer surgery, radiotherapy and chemotherapy, there is a big change in local environment, especially after surgery and radiotherapy, there is a big change in local tissue structure and function, and there is limitation of the change of local microenvironment by simple oral and intravenous drip. Therefore, regular local physical therapy and external application of traditional Chinese medicine play an important role, including umbilical therapy compresses and other means, and drugs should include anti-cancer Chinese medicine, anti-inflammatory Chinese medicine, blood-stasis activating Chinese medicine, etc. Acupuncture massage at appropriate acupuncture points can help intestinal excretion and contribute to the improvement of anti-disease ability. In conclusion, local recurrence after radiotherapy for rectal cancer can be controlled and reduced, it is quite important to adhere to the above principles, never think that everything is fine after surgery, radiotherapy and chemotherapy, as doctors hope that all patients will be fine after treatment, but still remind patients that it is important to take more precautions, prevention is better than cure you can really control your fate and have a happy life. Moderation prevails, no need to overdo it, the principles of our doctors, but also the principles of your treatment.