In this study from the Annals of Surgery in 1991 by Fabrizio Michelassi at the time at University of Chicago (he is now at Cornell University) from the period of 1970-1998 1379 patients with Crohn’s were studied. In 92% of patients a surgical resection was necessary. What I found interesting was that only 7% of patients needed a permanent stoma. I know many who suffer from Crohn’s that are worried about getting a stoma. Also these people were studied in the 1970’s and 1980’s. Since then treatment has improved and the quality of surgeries has improved. The recurrence rate for patients was 20% in 5 years while 34% at the end of a decade. This shows that the chance of surgery rises with time. Also if more than one site is involved then it increases the chances of having recurring surgery.