HGE, Hemorrhagic gastroenteritis is a sudden onset of severe bloody diarrhea which is often explosive. The diarrhea is often seen along with symptoms of vomiting (emesis), hypovolemia, and dehydration which can cause dangerous electrolyte imbalance or anemia.

Many problems can cause HGE. The direct cause is loss of the intestinal lining called the intestinal mucosa. Movement of bacteria and toxins from the lumen through the wall into the bloodstream can cause sepsis or shock. Aggressive therapy is required.

Treatments may include bloodwork, fluid administration, withholding food, and controlling vomiting with anti-emetic drugs. Medical therapy involving antibiotics, diet change and fluid therapy is often effective if the condition is detected early and treated rapidly.