Cramps in the lower stomach are mainly considered to be caused by intestinal spasms. Clinically, there are many causes of intestinal cramps, which are mainly caused by acute enteritis when the patient has a history of eating unclean food or overeating. For acute enteritis in addition to the appearance of small stomach cramps, may also appear nausea, vomiting, diarrhea and other digestive tract irritation symptoms. If it is only a simple stomach cramps, not accompanied by gastrointestinal irritation symptoms, consider that it may be caused by intestinal dysfunction, but also to consider whether the cause of intestinal obstruction, some patients if the abdominal cavity of the surgery or often have a history of constipation, it is very easy to trigger the occurrence of intestinal obstruction, this disease will also show abdominal distension and stop anal defecation, defecation and other symptoms.