Inclusion Criteria:  Male or female, aged 25 and over at the time of the study Subject listed in the EPIMAD registry suffering from certain or probable Crohn's disease, or certain or probable ulcerative colitis, or certain or probable ulcerated proctitis, unclassified colitis, diagnosed between 01/01 / 1988 and 12/31/2011, with an age at diagnosis of less than 17 years (definition of the pediatric cohort of the EPIMAD Registry) Patient residing in the area of the EPIMAD registry: Nord, Pas-de-Calais, Somme or Seine-Maritime Patient not opposed to the research Patient not having objected to the use of their data for ancillary studies when registering in the EPIMAD register  Exclusion Criteria:  None