What Is The Average Size Of A Vagina

Dimensions and shape of the homo vagina

The dimensions and shape of homo vagina are of great importance in medicine and surgery; at that place appears to be no i way, however, to characterize the vagina'southward size and shape.^[1] In addition to variations from individual to individual, the size and shape of a unmarried person'southward vagina can vary substantially during sexual arousal and intercourse.^[2] Conveying a baby to term, or parity, is associated with a significant increase in the length of the vaginal fornix.^[1] The potential effect of parity may be the result of a stretching and elongation of the birth culvert at the time of vaginal nascence.^[1]

At that place are a number of studies that have been done into the dimensions of the human being vagina, but it has not been as intensively researched every bit penis size.^[1]

Dimensions in the baseline country [edit]

A 1996 study by Pendergrass 'et al. using vinyl polysiloxane castings taken from the vaginas of 39 Caucasian women, found the following ranges of dimensions:^[three]

lengths (measured using rods): 6.ix to 14.8 cm (ii.7 to 5.8 in);
widths: four.8 to 6.iii cm (one.9 to 2.5 in);
introital diameters: 2.iv to 6.5 cm (0.94 to 2.56 in)

A second study by the same group showed significant variations in size and shape between the vaginas of women of different ethnic groups.^[iv] Both studies showed a wide range of vaginal shapes, described by the researchers as "Parallel sided, conical, heart, [...] slug"^[3] and "pumpkin seed"^[4] shapes. Barnhart et al., however, weren't able to discover any correlation amongst the race and the size of vagina. They were also unable to characterize the vaginal shape as a "eye, slug, pumpkin seed or parallel sides" as suggested by the previous studies.^[1] ^[5] A 2003 study by the group of Pendergrass et al. also using castings as a measurement method, measured vaginal surface areas ranging from 66 to 107 cm² (10.2 to 16.6 sq in) with a mean of 87 cmⁱⁱ (13.5 sq in) and a standard departure of 7.8 cm² (ane.21 sq in)^[6]

Inquiry published in 2006 by Barnhart et al., gave the post-obit mean dimensions, based on MRI scans of 28 women:^[i]

Mean length from cervix to introitus: vi.3 cm (ii.five in).
Mean width:
- at the proximal vagina: 3.3 cm (1.3 in);
- at the pelvic diaphragm: 2.7 cm (ane.ane in);
- at the introitus: 2.6 cm (1.0 in)

A 2006 U.S. written report of vagina sizes using Magnetic Resonance Imaging (MRI) on 28 volunteers between 18 and 39 years old, with heights ranging from i.v to 1.7 metres, and weights between 49.9 and 95.three kilograms, revealed a greater than 100 percent variation between the shortest (40.viii millimetres) and the longest (95.0 millimetres) vagina length.^[7]

Medical devices used in the vagina [edit]

Given the large range in vaginal dimensions noted in studies such equally the in a higher place, many fitted vaginal devices, for example pessaries, do not adhere to a "ane-size-fits-all" principle.^[8]

Sexual arousal [edit]

Lawrence, citing Masters and Johnson's Human Sexual Response (1966), states that pages 73 and 74 of that volume show that typical vaginal depth in Masters and Johnson'south participants ranged from seven–eight cm (2.8–3.1 in) in an unstimulated state, to xi–12 cm (4.3–4.seven in) during sexual arousal with a speculum in identify.^[two]

Surgically created neovaginas [edit]

The depth of the typical neovagina created by male-to-female sex reassignment surgery is generally limited past the length of Denonvilliers' fascia,^{[ citation needed ]} and is reported to be between eleven and 12 cm (iv.3 and 4.7 in), within the range of the natural female person vagina.^[ii]

References [edit]

^ ^a ^b ^c ^d ^e ^f Barnhart, Thousand. T.; Izquierdo, A.; Pretorius, E. S.; Shera, D. M.; Shabbout, M.; Shaunik, A. (2006). "Baseline dimensions of the human vagina". Homo Reproduction. 21 (6): 1618–1622. CiteSeerX10.one.1.485.8802. doi:10.1093/humrep/del022. PMID 16478763.
^ ^a ^b ^c Anne A. Lawrence. "Notes on Genital Dimensions". Archived from the original on March 24, 2006. Retrieved 2012-05-xiii .
^ ^a ^b Pendergrass, P. B.; Reeves, C. A.; Belovicz, G. Westward.; Molter, D. J.; White, J. H. (1996). "The shape and dimensions of the man vagina as seen in three-dimensional vinyl polysiloxane casts". Gynecologic and Obstetric Investigation. 42 (iii): 178–182. doi:10.1159/000291946. PMID 8938470.
^ ^a ^b Pendergrass, P. B.; Reeves, C. A.; Belovicz, K. Westward.; Molter, D. J.; White, J. H. (2000). "Comparison of vaginal shapes in Afro-American, Caucasian and Hispanic women every bit seen with vinyl polysiloxane casting". Gynecologic and Obstetric Investigation. 50 (1): 54–59. doi:10.1159/000010281. PMID 10895030. S2CID 37395321.
^ "The Social - How much do you know well-nigh vaginas?". TheSocial.ca. Archived from the original on December fourteen, 2017. Retrieved i January 2018.
^ .Pendergrass, P. B.; Belovicz, M. W.; Reeves, C. A. (2003). "Surface area of the human vagina as measured from vinyl polysiloxane casts". Gynecologic and Obstetric Investigation. 55 (2): 110–113. doi:x.1159/000070184. PMID 12771458. S2CID 27781106.
^ "Baseline dimensions of the homo vagina". Human Reproduction, Volume 21, Result six, June 2006, Pages 1618–1622 . Retrieved 27 January 2020.
^ Ding, J., Vocal, X., Deng, M. et al. Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China (iii June 2016). "Which factors should be considered in choosing pessary type and size for pelvic organ prolapse patients in a fitting trial? Int Urogynecol J 27, 1867–1871 (2016)". International Urogynecology Journal. 27 (12): 1867–1871. doi:ten.1007/s00192-016-3051-3. PMID 27260324. S2CID 1593002. {{cite journal}}: CS1 maint: uses authors parameter (link)