“…There are a number of potential causative risk factors that have been hypothesized and tested. Previous abdominal surgery, 6,16 sub-clinical inguinal hernia 7,17,18 and the length of incision 16,19 are supposed to be related to post-operative inguinal hernia. Age 5,6,9,[15][16][17][18]20 and anastomic stricture 9,14,17,18,20,21 have been suggested as risk factors in some studies, but not in others.…”