Intra-abdominal abscesses can be caused by a ruptured appendix, ruptured diverticula, intestinal parasitism (Entamoeba histolytica), and other conditions. Risk factors for intra-abdominal abscesses include any history of abdominal infectious processes such as appendicitis, diverticulitis, perforated ulcer disease, or any operation that involves contamination of the abdominal cavity, foreign bodies or dead tissue.
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