Upper abdominal pain can be no big deal—or it can merit a trip to the ER. Here's how experts say you can tell the difference.

bloody diarrhea, or severe abdominal pain is present. Viruses are the major cause of gastroenteritis in the United States and indeed worldwide, accounting for up to 30% to 40% of acute episodes.

A previously healthy 16-year-old female adolescent was hospitalized after a 4- to 5-day history of copious diarrhea ... pain, headache and fatigue. She had no rash, respiratory symptoms or ...

You might experience diarrhea along with cramping, intense urges to poop, feeling sick, and abdominal pain. Severe diarrhea lasts longer than a few days or causes bloody stools, fever, extreme ...