The survival rate of patients after surgery for sigmoid colon malignant tumor cannot be generalized, the staging of specific tumors, pathological types, treatment plans, and patients’ own physical condition are all closely related, generally speaking, the earlier the discovery, diagnosis, and treatment are made, the smaller the impact on patients’ survival is. For patients with sigmoid colon cancer, the 5-year survival rate after radical surgery can be more than 50%, and the 5-year survival rate for early-stage patients can be more than 80%, but the 5-year survival rate for late-stage patients is about 30%, and the 5-year survival rate is often used to roughly estimate the survival of patients with tumors in the clinic. For sigmoid colon cancer patients, it is possible to reduce the adverse effects of the disease through “early detection, early diagnosis and early treatment”, and many patients may survive for a long time, so the patients should set up confidence and actively accept regular treatment.