Intestinal cancer surgery must be chemotherapy?

Colorectal cancer generally refers to colorectal cancer. Not all colorectal cancers need chemotherapy after surgery. If it is cancer in situ or early colorectal cancer, it can be treated by endoscopy or surgery, and the goal of radical cure can be achieved. At this time, chemotherapy is not required after surgery. However, if it is in the middle and late stages, recurrence, metastasis patients, it is necessary to give chemotherapy, targeted therapy or radiation therapy after surgery for comprehensive treatment, which has the effect of reducing recurrence and metastasis, prolonging the survival time of patients and improving the quality of life.