Upset stomach? Don't write it off

Image: Thinkstock

In one-fourth of cases, no medical reason is found for severe or persistent upset stomach.

Frequent or persistent pain, fullness, and bloating may need a doctor's evaluation.

To continue reading this article, you must login.
  • Research health conditions
  • Check your symptoms
  • Prepare for a doctor's visit or test
  • Find the best treatments and procedures for you
  • Explore options for better nutrition and exercise
Learn more about the many benefits and features of joining Harvard Health Online »