After treatment, the 5-year survival rate of rectal cancer T2N0M0 can often reach 90%, and the overall prognosis is good. Rectal cancer is a common intestinal malignant tumor, and the occurrence of the disease is related to various factors such as heredity and gene mutation, etc. T2N0M0 is one of its TNM staging, which is stage I, representing the tumor has developed to the intrinsic muscularis propria layer without lymph node metastasis and distant metastasis. In this period, the staging is earlier, the lesions are limited, and the condition is relatively mild. The main treatment for stage I rectal cancer is radical surgical resection, and after active treatment, patients can obtain a five-year survival rate of about 90%. Although the stage is earlier, patients still need to follow the doctor’s instructions for regular review after surgery to minimize recurrence and improve the prognosis.