Inclusion Criteria:  Diagnosis of Ulcerative Colitis Diagnosis of Crohn's disease limited to the colon without any history of perianal disease Modified two or three stage restorative proctocolectomy Age above 18 Able to fill in questionnaires in local language and to come to out-patient-clinic visits;  Exclusion Criteria:  Known allergy to ICG, or iodide allergy. Pregnancy Redo pouch operation Age under 18