Normal people eating corn usually do not have diarrhea, but if eaten spoiled corn or corn allergy will cause diarrhea. Corn is rich in dietary fiber, folic acid, potassium, phosphorus, magnesium and other nutrients, in daily life, appropriate eating corn can play a role in promoting gastrointestinal peristalsis, relieve constipation and other symptoms, eating corn generally does not cause diarrhea. Unless eating spoiled corn, can cause the body to appear acute gastroenteritis symptoms, that is, abdominal pain, diarrhea, nausea, vomiting and other symptoms; or to the corn allergy crowd after eating corn can appear food allergy manifestations, causing diarrhea, abdominal pain and other gastrointestinal symptoms, but also can be accompanied by urticaria, angioedema and other skin symptoms. If you have diarrhea after eating corn, it is recommended that you go to the hospital and ask your doctor to make a judgment.