sentence: Nausea is usually harmless, in the short term.
sentences_before: Nausea is a symptom, rather than an illness or disease. The causes for it very often are not in the stomach itself, but somewhere else in the body. Nausea is often caused by a stomach virus.
sentences_after: Nausea can also occur during pregnancy, and is quite normal in that context.
concept_name: nausea
headings: Nausea
categories: Symptoms