Nausea and Vomiting

Nausea is a prodromal symptom, i.e. it is the conscious recognition that the vomiting center has been stimulated. Vomiting (emesis) is the forcible ejection of stomach contents through the mouth.

Vomiting is a common, usually benign, occasional, self-limiting condition, frequently with an obvious cause. When it occurs with diarrhea, the cause is usually ‘food poisoning’, i.e. it is consequent on the ingestion of food or drink contaminated with bacteria, bacterial toxins, viruses or, occasionally, protozoa.

Migraine, pregnancy and the over-consumption of alcohol or food account for many other cases. If there are no associated symptoms, especially systemic ones, the origin may be psychogenic, e.g. bulimia nervosa or stress.

However, vomiting may occasionally be a result of more serious disease.

Related Topics:

DyspepsiaPeptic UlcerIschemia

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