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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:Imperforate hymen
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Accession:HP:0030011 term browser browse the term
Definition:A congenital disorder where the hymen (a membrane that surrounds or partially covers the external vaginal opening) does not have an opening and completely obstructs the vagina.
Comment:Imperformate hymen is caused by a failure of the hymen to perforate during fetal development. It is most often diagnosed in adolescent girls when menstrual blood accumulates in the vagina and sometimes also in the uterus. It can be treated by surgical incision of the hymen. {xref="PMID:24822139"}
Synonyms:xref: MESH:C562397;   SNOMEDCT_US:65937002;   UMLS:C0152436

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  Human phenotype 0
    Phenotypic abnormality 0
      Abnormality of the genitourinary system 0
        Abnormality of the genital system 0
          Abnormal reproductive system morphology 0
            Abnormality of the female genitalia 0
              Abnormal morphology of female internal genitalia 0
                Abnormal vagina morphology 0
                  Imperforate hymen 0
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