Dyspepsia (from the Greek prefix (Dys-), meaning hard, difficult, and (Pepsi), meaning Digestion) is a constant pain in the stomach. Constant pains include indigestion and heartburn. Another discomfort is nausea. Functional dyspepsia has no visible cause. Other forms may be identified by X-ray or endoscopy.
Dyspepsia may be caused by conditions such as stomach ulcers. It is often aggravated by high acidity in the stomach. It may also be caused as a side-effect of drugs treating other illnesses such as arthritis and schizophrenia. Sometimes no specific cause can be found.
The term "dyspepsia" is both medical and general, and the term "dyspeptic" has come to mean "as if bothered by ulcers, irritable."
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