Abdominal pain itself can have many causes and can occur after lesions in every organ of the abdominal cavity. Some patients with abdominal pain can be accompanied by the sensation of defecation, as well as abdominal pain will be relieved after defecation, considered to be intestinal lesions. The most common ones in daily life, first, acute enteritis, acute enteritis after the emergence of abdominal pain will have the feeling of intestinal cramps, there will be a clear feeling of defecation, after defecation abdominal pain will be significantly better, defecation is diarrhea dilute watery stool, but abdominal pain duration is relatively short, two days or even a few hours later, through defecation abdominal pain will be improved. Secondly, intestinal obstruction, after defecation suggests that intestinal obstruction is clear, because intestinal obstruction itself indicates that there is obstruction in the intestine, and abdominal pain will improve after intestinal obstruction is cleared after defecation. If you consider intestinal obstruction, there are many causes of intestinal obstruction itself, and most intestinal obstruction has to go to the hospital for consultation, because the abdominal pain of intestinal obstruction lasts longer, at least for several days, and most of the pain is unbearable at home. Third, there are also lesions, such as inflammation of the large intestine or small intestine, tumor lesions may also lead to abdominal pain, abdominal pain will stimulate intestinal peristalsis to speed up, there will also be a feeling of defecation, and then through the release of pressure in the intestinal cavity after defecation, there will also be abdominal pain better, but abdominal pain will also last a long time, and abdominal pain will not be significantly aggravated. If for long-term chronic abdominal pain, the improvement after defecation long-term chronic appear, it is best to go to the hospital.