Frequency of various etiological factors causing lower gastro-intestinal bleeding and importance of endoscopy in children

Aim: to determine frequency of various etiological factors causing lower gi bleeding by endoscopy. duration: january 2010 to december 21010. methodology: it was a cross sectional survey started in jan 2010 and completed in one year. total 160 patients of bleeding per rectum were under gone colonoscopy on basis of inclusion criteria at the children's hospital and the institute of child health,lahore were included. results: a total of 160 patients were included in the study. male to female ratio was 2.9:1. mean age was found 7.05 years. all patients presented with bleeding per rectum. most common diagnosed on endoscopy is rectal polyps 74(46.3%),chronic colitis 20(12.5%),infectious colitis 19(11.9%),non-specific colitis 19(11.9%) and normal endoscopies are 27(16.9%). conclusion: we concluded that rectal polyps are most common cause of children presented with bleeding per rectum. colonoscopy is effective for proper diagnosis and farther management of bleeding per rectum.