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Colon perforation as a critical complication of exertional heat stroke.

Although reduced intestinal blood flow causing barrier dysfunction and endotoxemia is well documented in the pathogenesis of heat stroke (HS), complications of the gastrointestinal tract are less appreciated in HS patients. Herein, we report the case of a young man with exertional HS complicated with colon perforation. Acute abdomen, bloody diarrhea, dilated bowel loop, and unexplained shock should be considered as warning signs of colonic ischemia and consequent perforation. Early recognition is the key factor for improving the outcome of HS patients complicated with colon perforation.