Human cytomegalovirus ( HCMV) persistently infects humans in vivo vialatent infection. Recently more and more studies show that HCMV exists in the intestinal tract of the patients with inflammatory bowel diseases and suchillness is steroid- refractory . Furthermore , these patients present with severe clinical symptoms and even death . As a result , more attention has been paid to the correlation between HCMV infecti on andintestinal tract diseases . In this paper , the correlati on between HCMVinf ection and intestinal tract diseases is summarized .