small vulva vulva atrophy atrophic cunnus atrophic vulva MPheno.ontology atrophic external female genitals cunnus atrophy acquired diminution of the size of the external feminine genital organs, collectively known as the vulva, associated with wasting as from death and reabsorbtion of cells, diminished cellular proliferation, decreased cellular volume, pressure, ischemia, malnutrition, reduced function or malfunction, or hormonal changes atrophic organa genitalia feminina externa vulval atrophy atrophic external female genital organs MP:0009212