Abstract          Introduction: Pediatric surgery arose in the middle of the 20^th century as the surgical care of birth defects required novel techniques and methods and become more commonly based at children’s hospitals. Aims and Objectives: Study of Clinico-etiologic factors associated with intestinal obstruction in Pediatric patients at tertiary health care center. Methodology: This was cross-sectional study carried out in pediatric patients admitted to tertiary health care center with intestinal obstruction during the Year June 2014 to June 2015. All the Pediatric Patients diagnosed as intestinal obstruction were included into study while adult patient and those who don’t give consent were excluded from the study. Results: Peak incidence is seen in age group > 1 year to 6 years (34.78%). Peak incidence in males is in age group of > 1 years (40.9%). Peak incidence in females is in age group of 0 to 1 month (33.33%). Total no of cases was 69 of which 44 were male and 25 were female accounting for 63.76% and 36.23% respectively. Sex ratio male: female= 1.76. The majority of the patients were having Intussusceptions I.e. 31.87% followed by ; Hirschprung,s disease- 14.49% ; Adhesions and bands-13.04%; Obstructed inguinal hernia-11.59%; Low anorectal malformation-11.59%; Intestinal atresia-05.79%; Congenital diaphragmatic hernia-04.34%; Midgut malrotation-04.34%; High anorectal malformation-02.89%. Conclusion: The present study of acute intestinal obstruction was undertaken to study the incidence of various causative factors. The commonest cause of acute intestinal obstruction is intussusceptions with ilecolic intussusceptions cases more common than ileoileal intussusceptions. Hirschprung,s disease was the next common cause. Adhesions and bands, low anorectal malformation, obstructed inguinal hernia, intestinal atresia, midgut malformation, congenital diaphragmatic hernia, comprise the remaining causes.

Keywords: Intestinal obstruction, Intussusceptions, Hirschprung,s disease, Obstructed inguinal hernia, Intestinal atresia Congenital diaphragmatic herni.