AbstractIntroduction: Gastrointestinal obstruction in the pediatric age group may be due to a variety of congenital and acquired conditions. Aims and Objectives: To study Clinico-etiological factors of intestinal obstruction with respect to Age and Gender in Pediatric patients. 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: The commonest cause of intestinal obstruction is intussusception accounting to about 31.87% of cases. Hirschsprung’s disease is the next common cause accounting for 14.49% of cases. Adhesions and bands are the next commonest cause accounting for about 13.4%of cases. Low anorectal malformation. Obstructed inguinal hernia, are next commonest accounting for about 11.59% of all cases. Intestinal atresia accounts for 5.79% of cases. Midgutmalrotation, congenital diaphragmatic hernia is the next commonest cause accounting for about 4.34% of cases each.In the present study- Adhesions and bands as the cause of intestinal obstruction were seen more commonly in age group of 1 to 6 years. Anorectal malformations (both high and low types) were more common in age group of 0 to 1 months congenital diaphragmatic hernia, malrotations was commonly seen after the age of 1 year. However lleo-ileal intussusception was common in age group of 1 month to 1 year and lleocolic intussusceptions was common in age group of 1 to 6 years. Obstructed inguinal hernias were also common in age group of 1 to 6 years. Conclusion: Most common cause for small bowel obstruction was intussusception. Adhesions, malrotation, obstructed inguinal hernia, intestinal atresia, midgutmalrotation congenital diaphragmatic hernia were the other causes. Most common cause for large bowel obstruction was hirschsprung’s disease followed by anorectal malformations. Appendicectomy was the commonest causes responsible for obstruction due to postoperative adhesions.