The stomach pain when defecating may be a physiological condition, or it may be caused by gastrointestinal dysfunction, chronic colitis and other pathological reasons: a. Physiological condition Physiological condition, when defecating, feces accumulates in the rectum to a certain amount, stimulating the intestinal mucosa active peristalsis, causing a burst of intestinal spasm response, accompanied by abdominal pain, generating the urge to defecate and promoting defecation. The abdominal pain is usually mild and short-lived in this case, and the stomach pain will disappear as long as the feces is expelled from the body in time. In addition, if you catch a cold, cold stimulation of the gastrointestinal tract may also lead to stomach pain during stool, which can be relieved by itself. Second, the pathological reasons 1, gastrointestinal dysfunction: stomach pain when stool, accompanied by diarrhea and other symptoms, the stomach pain can be relieved after defecation, may be due to gastrointestinal dysfunction. You can take oral intestinal probiotics to regulate intestinal flora and oral antidiarrheal drugs such as montelukast to stop diarrhea under the advice of a doctor. Correct bad habits, avoid unclean food and cold and spicy food stimulation; 2, chronic colitis: the degree of diarrhea varies, stomach pain is mostly chronic, sometimes light and sometimes heavy, the patient can appear the sense of urgency or stool when the stomach pain. Mainly give anti-infective drugs to control inflammation, as well as anti-diarrheal drugs to improve diarrhea symptoms; 3, indigestion: gastric dysfunction causes disease, food stays in the stomach for a long time, causing stomach pain, constipation, the symptoms of stomach pain during stool, the symptoms of severe suspension of food, drinking light saline during fasting; symptoms of mild, reduce the amount of food, less stimulating, cold food, can choose easy to digest porridge, under the guidance of doctors Under the guidance of the doctor, apply drugs to help digestion. Pay attention to a reasonable diet in daily life, strengthen abdominal warmth, and observe temporarily if the stomach pain is relieved after the stool and there are no other uncomfortable symptoms; if it is accompanied by nausea and other uncomfortable symptoms, it is recommended to consult a doctor in time to clarify the cause and treat the cause so as not to delay the disease.