Inclusion Criteria:  Every patient ≥15 years old; Patients attended by a Gastroenterology consultation; Patients attended due to an established diagnosis of Crohn's disease, ulcerative colitis, indeterminate colitis or IBD unclassified; Patients whose diagnosis should be based on Lennard-Jonnes criteria: clinical, imaging, endoscopic or anatomopathological findings.  Exclusion Criteria:  Patients with a recent diagnosis and no more than a 6-months follow-up; Patients ongoing hospitalisation due to severe IBD flare; Patients with psychiatric diseases, language impairment, those who find it difficult to visualise the survey or any other condition that difficult answering of a self-administered survey; Patients who they are sanitary professional will not be considered for disease-related knowledge level evaluation; Patients not under pharmacological treatment (as naïve patients) will not be considered for treatment adherence and compliance evaluation