HEmorrhoidAl Disease in Inflammatory Bowel Disease: a Multicenter Prospective Cohort Study

Inclusion Criteria: * age of 18 years and above; * established diagnosis of Crohn's disease or ulcerative colitis at the time of surgery for hemorrhoidal disease; * planned surgery for hemorrhoidal disease during the study period, including hemorrhoidectomy (open, close or submucosal), transanal hemorrhoidal dearterialization, hemorrhoidal laser procedure, stapled hemorrhoidopexy). Exclusion Criteria: * previous surgery for hemorrhoidal disease other than office-based treatments (e.g., sclerotherapy injection, rubber band ligation); * active perianal disease at the time of surgical intervention.