After eating a lot of watermelon defecation is red, if there are no other symptoms of discomfort is normal, if there is discomfort, you need to consider whether it is rectal diseases, lower gastrointestinal bleeding and other causes.
1. No discomfort: because watermelon contains a lot of red pigment, in the human intestinal tract can not be absorbed, it will be mixed with the stool, and then discharged, at this time the stool will be presented as red, if the body does not have other uncomfortable symptoms, generally do not need to worry about it, is a normal situation.
2. Rectal diseases: if in defecation, the anus has a tearing or tingling sensation, the stool is red, consider whether there are hemorrhoids, anal fissure disease, suffering from such diseases, in defecation, feces tear anus, resulting in bleeding, blood and stool mixing will appear red stool.
3. Lower gastrointestinal bleeding: mainly seen in colon cancer, colon polyps, intestinal smooth muscle tumors and other diseases, this kind of disease will cause intestinal mucous membrane breakage, resulting in bleeding, blood mixed with feces discharge, will cause blood in the stool.
After eating watermelon defecation is red may also be caused by other reasons, if the discomfort is aggravated, need to go to the hospital as soon as possible, after identifying the cause of the disease, in the hospital for professional treatment.