How long it takes for colon cancer to recur after surgery cannot be generalized and is closely related to the clinical stage of tumor and surgical effect. If the patient’s colon cancer is still in the early stage, the effect of surgery is usually better and the chance of recurrence after surgery is lower, and the patient may have recurrence or no recurrence after decades. In addition, the differentiation degree of the tumor also determines the recurrence. The lower the differentiation degree of colon cancer, the higher the malignant degree of the tumor, and the higher the risk of recurrence. Meanwhile, patients need to cooperate with radiotherapy, chemotherapy and other comprehensive treatments after surgery. If patients can actively cooperate with systematic treatment, the recurrence rate is relatively low. If patients cannot receive chemotherapy on time after surgery, the remaining cancer cells in the body will eventually spread and the recurrence rate is relatively high. Patients after colon cancer surgery need to go to oncology department or gastrointestinal surgery department of regular hospitals every 3-6 months for review and imaging and other examinations, and if there is any recurrence, it should be detected and treated at an early stage.