Table 2

Differential diagnoses of diarrhoea with rectal bleeding

Inflammatory bowel diseaseCrohn’s disease
Ulcerative colitis
Infection drug induced Clostridium difficile
Campylobacter
Salmonella
Shigella
Escherichia coli (0157:H7/VTEC)
Yersinia
Aeromonas
Listeria
Amoebiasis
Tuberculosis
Schistosomiasis
Herpes and cytomegalovirus infection in immunocompromised
Drug inducedNon-steroidal anti-inflammatory medication
Antibiotics
Gold
MiscellaneousIschaemic colitis
Radiation colitis
Vasculitis (polyarteritis nodosa, Behcet’s disease)
Diverticulitis
Colorectal cancer