Wasting and not recovering after colon cancer surgery may be caused by impaired intestinal function and bad dietary habits. 1. Impaired intestinal function: after colon cancer surgery, the intestinal function will be damaged, and it takes a period of time to rebuild the intestinal tract, which will affect patients’ digestion and absorption of food, and the nutrition can not be supplemented effectively, thus causing the body to lose weight. 2. Bad dietary habits: if patients do not pay attention to their dietary habits after colon cancer surgery, often eat foods with no nutrition, or take partiality and picky eating for a long time, it may also cause body wasting. If you do not recover from wasting after colon cancer surgery, you need to go to the hospital for further examination to understand the cause and then give targeted treatment. Nutrition should be balanced in diet, and less spicy and stimulating food should be eaten. It is recommended to consult the nutritionist of the hospital to give detailed guidance.