Nausea and vomiting

Abstract

Nausea refers to the unpleasant sensation one experiences when having to vomit. 1,2 Vomiting is the ultimate forceful expulsion of stomach contents through the mouth, intended to protect a person from harmful ingested substances. 1–3 Causes of nausea and vomiting vary across different age groups and can range from relatively mild to potentially life threatening. 1