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This article is about the physical sensation. For the novel by Jean-Paul Sartre, see Nausea (Book); for the punk band, see Nausea (band).
Nausea (
Greek Ναυτεία) is the sensation of unease and discomfort in the
stomach with an urge to vomit.
Nausea is a symptom of many conditions, including
motion sickness,
morning sickness during pregnancy, viral infections, and other diseases. It is also a
side effect of many drugs.
In medicine, nausea is a particular problem during some
chemotherapy regimens and following
general anaesthesia. Nausea is also a common symptom of
pregnancy.
Whilst short-term nausea and vomiting are generally harmless, they may sometimes indicate a more serious disease. When associated with prolonged vomiting, it may cause dangerous levels of
dehydration.
Symptomatic treatment for nausea and vomiting may include short-term avoidance of solid
food. This is usually easy as nausea is nearly always associated with loss of appetite (
anorexia). Dehydration may require
rehydration with oral or intravenous
electrolyte solutions. Oral rehydration is safer and simpler in most cases.
There are many
antiemetic drugs to treat nausea, although the researchers continue to look for more effective treatments.
See also
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Category:Sign (medicine)
Category:Symptoms
pt:Náusea
de:Übelkeit