Thrombosis of the mesenteric vein can often cause more serious consequences or even life-threatening, so it is a common emergency in vascular surgery and basic surgery. The onset of mesenteric thrombosis is often slow, the initial manifestation of abdominal discomfort, constipation or diarrhea, in a few days or weeks with the spread of thrombus expansion, venous reflux obstruction affecting the survival of the intestinal tract, there will be a sudden onset of severe abdominal pain, persistent vomiting, diarrhea and bloody stools, this situation is often in the examination can be found in abdominal distension, abdominal pain, rebound pain, and muscle tension, and other acute abdominal symptoms, abdominal cavity puncture A puncture of the abdominal cavity can draw bloody fluid and is often accompanied by an increase in white blood cells and red blood cell pressure, and on X-ray film, the small intestine can be dilated, inflated and accompanied by fluid and gas levels.