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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:Failure to thrive
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Accession:HP:0001508 term browser browse the term
Definition:Failure to thrive (FTT) refers to a child whose physical growth is substantially below the norm.
Comment:Although there is no clear consensus on the exact definition of FTT, it is usually diagnoses in a child growing below the 3rd percentile or in a child whose decreased growth has cross two major growth percentiles (for example, from above the 75th percentile to below the 25th percentile).
Synonyms:exact_synonym: Faltering weight;   Postnatal failure to thrive
 broad_synonym: Undergrowth
 related_synonym: Poor weight gain
 alt_id: HP:0001535;   HP:0008853;   HP:0008878;   HP:0008916
 xref: SNOMEDCT_US:36440009;   SNOMEDCT_US:432788009;   UMLS:C0231246;   UMLS:C2315100

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  Human phenotype 0
    Phenotypic abnormality 0
      Growth abnormality 0
        Abnormality of body weight 0
          Decreased body weight 0
            Failure to thrive 0
              Failure to thrive in infancy 0
              Failure to thrive secondary to recurrent infections 0
              Severe failure to thrive 0
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