Colon cancer is a common malignant tumor of the gastrointestinal system, and many colon cancer patients need anti-tumor treatment through chemotherapy. Common adverse reactions after chemotherapy for colon cancer include the following: a. Gastrointestinal reactions, which are common adverse reactions of colon cancer patients, clinically manifested as nausea, vomiting, abdominal pain, diarrhea, constipation, etc. Bone marrow suppression, clinically manifested as the decrease of white blood cell, platelet and hemoglobin values, and in serious cases, complications such as infection and bleeding may occur. Adverse reactions of the nervous system are mostly caused by oxaliplatin, a chemotherapeutic drug commonly used in colon cancer chemotherapy. Hand-foot syndrome, which is also related to capecitabine, a chemotherapeutic drug commonly used in colon cancer chemotherapy. V. Liver function impairment, which requires additional liver-protective drugs to ensure the smooth implementation of chemotherapy, and some patients may also experience adverse reactions such as renal function impairment and hair loss.