What is nausea?
Nausea is a very common symptom that is often described as a feeling of queasiness or wooziness, or a need to vomit. Nausea accompanies a wide variety of mild to serious infections, diseases, conditions, and injuries, and it occurs in all age groups and populations.
Symptoms of nausea can be short-term and disappear quickly, as in the case of indigestion. But symptoms can also be long-lasting or recur over a period of days, weeks, and months, such as nausea induced by migraine, cancer, pancreatitis, certain medications, or body trauma.
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Nausea occurs with other symptoms affecting the digestive system as well as other body systems.
Nausea associated with head injury, bloody stools, or vomiting of blood can be a symptom of a serious, potentially life-threatening condition and should be immediately evaluated in an emergency setting.