Children can not pull out the stool nausea, considered by constipation, intestinal obstruction, irritable bowel syndrome and other diseases. 1. Constipation: if children do not develop good defecation habits or excessive partiality, picky eating, can trigger constipation, resulting in children can not poop, anal pain and other symptoms, and can be accompanied by nausea, bad breath, abdominal distension and other phenomena. 2. Intestinal obstruction: If there are many reasons (such as intussusception, intestinal torsion, roundworm obstruction, etc.) leading to the obstruction of intestinal contents, intestinal obstruction can be triggered, resulting in abdominal pain, abdominal distension, nausea, vomiting and other symptoms, if complete intestinal obstruction occurs, intestinal contents can not pass through the obstruction site, and the phenomenon of not being able to poop out. 3. Irritable bowel syndrome: If children are intolerant to food or have bacterial infections in the intestinal tract, irritable bowel syndrome can be triggered, resulting in abdominal pain, bowel movement abnormalities (i.e., stools do not come out, diarrhea, or stools do not come out and diarrhea alternately) and other phenomena, and can be accompanied by belching (hiccups), nausea and other symptoms. Children can not poop nausea, there may be other reasons, it is recommended to go to the hospital in time to improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.