Qualitative Exploration of Key Symptoms of Stricturing Crohn's Disease: Toward the Development of a Clinical Assessment Score.

The goal of this qualitative study is to identify and better understand the symptoms of stricturing Crohn's disease in order to inform the development of more appropriate clinical evaluation scores. This study focuses on adult patients diagnosed with stricturing Crohn's disease who are followed in hospital gastroenterology departments. The main questions it aims to answer are: * Which symptoms are perceived by patients as the most specific and significant features of stenosing Crohn's disease? * Which symptoms are perceived by patients as early warning signs of a stenosing flare? * How does stenosing Crohn's disease impact daily life, mental health, and quality of life, and what coping strategies do patients use to manage symptoms and limit their impact? Participants will: * Take part in a one-hour individual semi-structured interview, conducted in person (at the hospital, at home, or in another agreed location) or by videoconference * Have the interview audio-recorded for transcription and qualitative analysis * Be offered the opportunity to review and validate the transcript and summary of their interview before final anonymized analysis