Life-threatening rectal bleeding due to cytomegalovirus colitis in a haemodialysis patient

Cytomegalovirus (CMV) disease is a well-recognized complication in immunocompromised patients such as renal transplant recipients, occurring due to reactivation of latent infection or primary infection. It is, however, uncommon in immunocompetent patients. We report a haemodialysis patient who presented with pyrexia and life-threatening rectal bleeding due to CMV colitis, who had none of the classical risk factors for CMV disease, although was at risk. We review the literature surrounding CMV colitis in immunocompetent patients. This case highlights the importance of considering unusual causes for the common presentation of rectal bleeding in vulnerable patient populations.