Functional dyspepsia (dis-PEP-see-uh) is a term for recurring signs and symptoms of indigestion that have no obvious cause. Functional dyspepsia is also called non-ulcer stomach pain or non-ulcer dyspepsia.
Functional dyspepsia is common and can be long-lasting. The condition can cause signs and symptoms that resemble those of an ulcer, such as pain or discomfort in your upper abdomen, often accompanied by bloating, belching, and nausea.
Signs and symptoms of functional dyspepsia may include:
- A burning sensation or discomfort in your upper abdomen or lower chest, sometimes relieved by food or antacids
- An early feeling of fullness when eating
It's not clear what causes functional dyspepsia. Doctors consider it a functional disorder, which means it's not found to be caused by a specific disease or diagnosable disorder.