The congestion and edema of intestinal mucosa may be caused by eating some stimulating food, or it may be caused by intestinal infection, or it may be caused by intussusception. 1. Physiological factors: if you eat chili peppers, garlic and other foods, under the stimulating effect of these foods, it can lead to a transient congestion and edema of the intestinal mucosa, which is a normal phenomenon, no need to worry too much. 2. Intestinal infections: If the intestinal tract is infected by bacteria or virus, the intestinal mucosa will be congested and edematous under the stimulation of inflammation caused by the infection, and then it is necessary to treat the bacterial or viral infection. 3. Intussusception: Intussusception is a kind of disease in which a section of intestinal tube is set into its adjacent intestinal lumen, and the intestinal contents pass through the obstacle, and this disease can also lead to the manifestation of congestion and edema of intestinal mucosa, which can be reset by enemas, and surgical treatment is needed for the patients who suffer from secondary intestinal necrosis. Intestinal mucosal congestion and edema, there may be other reasons2, if the intestinal mucosa appears congestion, edema manifestation or persistent unrelieved, it is recommended to consult a doctor in time to find out the cause, and ask the doctor to be disposed of.