Often stomach pain stools are not shaped may be gastroenteritis, gastrointestinal neurosis, ulcerative colitis and other causes. 1. Gastroenteritis: mostly seen in acute gastroenteritis, often this phenomenon, may be related to improper diet, usually because of dietary disorders caused by the summer and fall seasons, often accompanied by nausea, vomiting, diarrhea and other symptoms. 2. Gastrointestinal neurosis: it may be caused by the interaction of social, psychological and biological factors, often leading to abdominal pain, diarrhea, nausea, constipation and other symptoms. 3. Ulcerative colitis: is a relatively common chronic non-specific intestinal inflammatory diseases, due to lesions in the mucosa and submucosa of the large intestine, often leading to diarrhea, abdominal pain and other symptoms, resulting in the stool is not shaped. Frequent stomach pain in the stool is not shaped may also be due to other causes, should be timely to the hospital, identify the causes of targeted treatment.