Sometimes inflamed diverticula can cause narrowing of the bowel, leading to an obstruction.
Girls, what does anal feel like? I'm worried. - The Student Room
Human Physiology/The gastrointestinal system - Wikibooks, open books for an open world
Fistula-in-Ano: Background, Anatomy, Etiology
Differences in Small & Large Intestines
What Is Anal Cancer?
The gallbladder stores bile, which is released when food containing fat enters the digestive tract, stimulating the secretion of cholecystokinin CCK. Hemorrhoids that are already enlarged don't get smaller on their own again, though.
Enlarged hemorrhoids: Overview - National Library of Medicine - PubMed Health
Because IQWiG is a German institute, some of the information provided here is specific to the German health care system.