Inclusion Criteria:  - Patients of both genders aged over 18 years old With an established diagnosis of Crohn's disease, whether active or quiescent With an indication of a small bowel capsule endoscopy Without any small bowel stricture (patency capsule procedure on the 7 days before the capsule endoscopy) Registered with a social security scheme Having provided their oral consent for the study after appropriate information  Exclusion Criteria:  - Patients aged below 18 years old Diagnosis of ulcerative colitis or IBD unclassified Presence of an ileostomy Presence of a small bowel syndrome Symptoms suggestive of a small bowel stricture Retention of the patency capsule on an abdominal X-ray performed 48 hours after the ingestion Abdominal pain after the ingestion of the patency capsule Planned abdominal surgery in the next month Known intestinal fistula Swallowing disorders Established diagnosis of delayed gastric emptying or suggestive symptoms Intake of non-steroidal anti-inflammatory drugs (NSAIDs) in the month prior to the capsule endoscopy Intake of oral iron supplementation in the week prior to the capsule endoscopy Intake of oral 5-ASA granules in the week prior to the capsule endoscopy Ongoing pregnancy Presence of a pace-maker or implantable defibrillator Known allergy to polyethylene glycol or to lactose Vulnerable people i.e. adults under a legal protection regime (guardianship, trusteeship, judicial safeguard)