Contraindications three months after colon cancer surgery include diet and examination. 1. Diet: after fasting after colon cancer surgery, when the decompression of intestines and stomach stops and there is no feeling of abdominal distension, you can start to eat some light fluids, and after 1 week, you can consume semi-fluids, and after 2 weeks, you can consume ordinary food. Avoid eating spicy, cold, hard and too greasy food, so as not to cause irritation to the intestinal mucosa. 2. Examination: avoid enema after surgery to prevent anastomosis cracking and infection. In addition, regular rechecking is needed to prevent recurrence of colon cancer. When colon cancer is surgically treated, one can also consult doctors about relevant contraindications after surgery and carry out follow-up treatment under doctors’ guidance, regular rechecking and timely medical treatment if there is any discomfort in the process.