For patients diagnosed pathologically with stage II colon cancer, postoperative adjuvant therapy should be considered as appropriate. Colon cancer is a common malignant tumor of the digestive tract in China, originating from the mucosa of the colon, with adenocarcinoma being the most common pathological type. Patients presenting symptoms such as bloody stools or changes in stool shape should be considered for a diagnosis of colon cancer. Those suspected of colon cancer should undergo a colonoscopy as soon as possible. During the colonoscopy, colon mass can be detected, and tissue can be taken from the mass for pathological biopsy. For patients definitively diagnosed with colon cancer, surgery is the preferred treatment. After surgery, patients whose postoperative pathology confirms stage II often require postoperative adjuvant chemotherapy, typically lasting up to six months.