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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:Intrauterine growth retardation
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Accession:HP:0001511 term browser browse the term
Definition:An abnormal restriction of fetal growth with fetal weight below the tenth percentile for gestational age.
Comment:Intrauterine growth restriction is a newer term that is preferred over Intrauterine growth retardation. The causes of IUGR include maternal abnormalities (chronic hypertension, cyanotic heart disease, smoking, drug abuse), placental or umbilical cord abnormalities (including placenta previa and cord anomalies), maternal medicationas, and genetic disorders of the fetus.
Synonyms:exact_synonym: IUGR;   In utero growth retardation;   Intrauterine growth failure;   Intrauterine growth restriction;   Intrauterine growth retardation, IUGR;   Intrauterine retardation;   Prenatal growth deficiency;   Prenatal growth failure;   Prenatal growth retardation;   Prenatal onset growth retardation;   Small for gestational age infant
 alt_id: HP:0001515;   HP:0008862;   HP:0008892;   HP:0008931
 xref: MESH:D005317;   MESH:D007236;   SNOMEDCT_US:199612005;   SNOMEDCT_US:22033007;   UMLS:C0015934;   UMLS:C0021296;   UMLS:C1386048

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  Human phenotype 0
    Phenotypic abnormality 0
      Growth abnormality 0
        Growth delay 0
          Intrauterine growth retardation 0
            Mild intrauterine growth retardation 0
            Moderate intrauterine growth retardation 0
            Severe intrauterine growth retardation 0
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