• Perforated colorectal cancer
  • Infectious colitis, eg, Campylobacter, C. difficile
  • Inflammatory bowel disease
  • Intestinal ischemia
  • Appendicitis
  • Gynecologic: pelvic inflammatory disease, tubo-ovarian abscess, ovarian torsion, ruptured ectopic pregnancy or ovarian cyst, mittelschmerz, endometriosis
  • Urinary calculus
  • Ascariasis

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Last updated: December 1, 2014