Usually, after standardized and systematic treatment, the possibility of long-term survival or even cure of stage IIA colon cancer is very high; the main treatment modalities of stage IIA colon cancer include radical surgery and postoperative adjuvant chemotherapy. Stage IIA colon cancer has limited invasion and metastasis of cancer cells, and there is no metastasis to distant organs, so it is not an advanced stage of colon cancer; through radical surgery, the intestinal segments around the primary foci will be resected and the surrounding lymph nodes will be swept away; postoperative adjuvant chemotherapy will kill the cancer cells that may be left inside the body, and the cure rate of the surgery can be further improved. Long-term survival or even cure can be realized after radical surgery and postoperative adjuvant chemotherapy for stage IIA colon cancer; patients with stage IIA colon cancer need to go to the hospital in time and be treated according to their specific conditions under the guidance of doctors.