Eating a full meal want to poop and overeating, gastrointestinal peristalsis faster physiological factors, but also consider with the irritable bowel syndrome, gastroenteritis, ulcerative colitis and so on. 1. Physiological factors: some people want to poop when they are full after overeating and increased gastrointestinal motility. 2. Irritable bowel syndrome: the disease is related to visceral hypersensitivity, abnormal gastrointestinal dynamics, intestinal microecological imbalance and so on. The disease may cause some patients to want to poop on a full stomach, and may be accompanied by abdominal pain, diarrhea or constipation. 3. Gastroenteritis: Gastroenteritis is associated with pathogenic microbial infections and reflux of digestive juices. Typical symptoms include epigastric pain, diarrhea, postprandial fullness, loss of appetite, belching, acid reflux, etc. Some patients may want to poop on a full stomach. 4. Ulcerative colitis: the disease can also cause some patients want to poop on a full stomach. The disease is related to immune factors, genetic factors, etc. Common symptoms include diarrhea, mucus, pus and blood stools, abdominal pain, loss of appetite, nausea and vomiting. It is recommended that those who want to poop after eating actively investigate physiological factors, and those who are accompanied by other uncomfortable symptoms need to consult a doctor in a timely manner.