The duration of time to reoperation for Crohn's disease recurrence at the surgical anastomosis will be assessed from the clinical notes. This is of relevance to the patient population as well as the medical community. Crohn's disease commonly recurs, necessitating further surgery. Multiple operations resulting in resection of the bowel results in a reduction in the length of bowel available for absorption of nutrients from food. Ultimately, patients may develop short bowel syndrome. This requires total parenteral nutrition, with the associated risks this carries, and may require small bowel transplantation.