The research hypothesis is that video visualization improves the quality of bowel preparation and the patients' understanding of the modalities of bowel preparation.

The prescription of colonoscopy is performed by a gastroenterologist, who chooses the type of bowel preparation. During this consultation, the doctor explains to the patient the bowel preparation, then gives the patient the prescription with the type of product and a sheet explaining the diet without residues.

The time between this consultation and the colonoscopy is sometimes long. The idea of this study is to accompany this information on intestinal preparation with a video that details the different stages of intestinal preparation by MOVIPREP. Indeed, studies have in the past shown an improvement in the quality of intestinal preparation with the help of better information to patients (educational booklet, or smartphone application)

Inclusion Criteria

• Major patient
• Patient with first indication of colonoscopy
• Colonoscopy performed in outpatient with preparation by MOVIPREP
• Patient affiliated with Social Security
• Informed consent signed by the patient

Exclusion Criteria:

• Hospitalized patients
• With no Internet access, or no access to the email
• Blind patients
• Patient who don't speak French
• Pregnant woman
• Severe constipation (3 stools/week) or long-term laxatives
• History of partial or total colectomy
• Other preparation product

All major patients, without legal protection measures, understanding French and having access to the internet and an email address. Patient having a first outpatient colonoscopy with preparation by MOVIPREP.

The study will be proposed by the investigator to patients followed for colonoscopy in the department of Hepato-gastroenterology. If patients accepted to participate in the protocol and the informed consent form is signed, patients will be included in the protocol.