Hematochezia, stomachache must be intestinal cancer?

Hematochezia, abdominal pain may be caused by intestinal cancer symptoms, but it may also be constipation, enteritis, intestinal polyps, hemorrhoids, intestinal tumors and other diseases caused. only with hematochezia, abdominal pain these two symptoms are unable to diagnose intestinal cancer, it is recommended to go to the hospital to do colonoscopy and other examinations for diagnosis.