Diverticula are thought to be caused by an increased pressure within the lumen of the colon.  Increased intra-colonic pressure secondary to constipation may result in weaknesses in the colon walls giving way to diverticula. Other causes may include high-pressure colonic spasm, which may be due to dehydration or low-fiber diets. Fiber causes stools to retain more water and to become easier to pass during a bowel movement.
Colonic wall weakness
Increased intra colonic pressure
Constipation
Lack of exercise
Low-fiber diet
Older age
Processed foods
Frequent straining
Colonic wall weakness
Constipation
Frequent straining
Increased intra colonic pressure
Lack of exercise
Low-fiber diet
Olderage
Processed food use.
Diverticulosis causes
Upper gastrointestinal bleeding causes
Gastrointestinal perforation causes
Ulcerative colitis causes
Secondary peritonitis causes
Mesenteric ischemia causes
Crohn's disease causes
Ischemic colitis causes