Symptoms of stomach rattling after eating after colon cancer surgery may be normal phenomenon, or it may be caused by narrowing of intestinal tube, or it may be caused by intestinal obstruction. 1. Physiological factors: after colon cancer surgery, patient’s intestines will go through a process from intestinal paralysis to gradual recovery of intestinal peristalsis, it is normal phenomenon that slight hyperactivity of intestines occurs in this process, which may be manifested as the symptom of stomach rattling badly after eating. 2. Stenosis of intestinal lumen: the intestinal tract of patients after colon cancer surgery may have edema, which may lead to narrowing of intestinal lumen. At this time, if eating strengthens peristalsis of gastrointestinal tract and it is difficult for foodstuff to pass through the narrowed intestinal lumen, then the symptom of stomach rattling will appear. 3. Intestinal obstruction: after colon cancer surgery, due to intestinal adhesion and tumor recurrence, it can lead to intestinal obstruction, and then the symptom of stomach rattling after eating will also appear. After eliminating physiological factors, if the symptom of stomach rattling after eating continues to be unrelieved, one should consult doctor in time to find out the cause and give treatment so as to avoid delaying the condition.