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The Human Phenotype Ontology (HPO) is downloaded weekly from The file downloaded is considered the "last stable build" available for the ontology. For more about the HPO, view their website at

Term:Nausea and vomiting
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Accession:HP:0002017 term browser browse the term
Definition:Nausea is a commonly encountered symptom that has been defined as an unpleasant painless subjective feeling that one will imminently vomit. Vomiting has been defined as the forceful expulsion of the contents of the stomach, duodenum, or jejunum through the oral cavity. While nausea and vomiting are often thought to exist on a temporal continuum, this is not always the case. There are situations when severe nausea may be present without emesis and less frequently, when emesis may be present without preceding nausea.
Synonyms:xref: SNOMEDCT_US:16932000;   UMLS:C0027498

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  Human phenotype 0
    Phenotypic abnormality 0
      Abnormality of the digestive system 0
        Abnormality of digestive system physiology 0
          Abdominal symptom 0
            Nausea and vomiting 0
              Nausea 0
              Vomiting + 0
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