Hemorrhoids, polyps, cancer,
inflammatoryInflammatory bowel disease
Ulcerative colitis bowel disease, diverticulosis and
colitisColitis
Irritable bowel syndrome
Ischemic colitis
Necrotizing enterocolitis
Salmonella enterocolitis
Ulcerative colitis are all possibilities.
In any case of persistant rectal bleed, some kind of lower endoscopy would be recommended to evaluate for these conditions and to narrow down the source of the bleed - this can include a colonoscopy or flexible sigmoidoscopy.
You may want to discuss these options with your personal physician.
Followup with your personal physician is essential.
This answer is not intended as and does not substitute for medical advice - the information presented is for patient education only. Please see your personal physician for further evaluation of your individual case.
Kevin, M.D.
Medical Weblog:
kevinmd_b