Inclusion Criteria:  Male and female outpatients aged: ≥18 years undergoing a screening, surveillance, or diagnostic colonoscopy between June 1, 2019, to September 1, 2021 Who have used NER1006 in the preparation of the colonoscopy either in split doses or same day.  Exclusion Criteria:  History of colorectal cancer o colectomy before the first colonoscopy Impossibility to obtain the required mandatory data