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Study Confirms Anatomic Existence of the Elusive G-Spot

For centuries, women have been reporting engorgement of the upper, anterior part of the vagina during the stage of sexual excitement, despite the fact the structure of this phenomenon had not been anatomically determined.

A new study published in The Journal of Sexual Medicine documents that this elusive structure does exist anatomically.

Adam Ostrzenski, M.D., Ph.D., of the Institute of Gynecology in St. Petersburg, FL, conducted a stratum-by-stratum anterior vaginal wall dissection on an 83-year-old cadaver. The dissection established the presence of the G-spot, a well-delineated sac structure located on the dorsal (back) perineal membrane, 16.5 mm from the upper part of the urethral meatus, creating a 35 degree angle with the lateral (side) border of the urethra.

Having 3 distinct regions, the G-spot emerged with dimensions of length (L) of 8.1 mm x width (W) 3.6 mm to 1.5 mm x height (H) 0.4 mm. Upon removal of the entire structure with the adjacent margin tissues, the G-spot stretched from 8.1 to 33 mm.

“This study confirmed the anatomic existence of the G-spot, which may lead to a better understanding and improvement of female sexual function,” Ostrzenski concludes.

Irwin Goldstein, editor-in-chief of The Journal of Sexual Medicine believes that research in women’s sexual health issues is important. “This case study in a single cadaver adds to the growing body of literature regarding women’s sexual anatomy and physiology.”

This study is published in The Journal of Sexual Medicine. Media wishing to receive a PDF of this article may contact

Full citation: Ostrzenski. “G-Spot Anatomy: A New Discovery. The Journal of Sexual Medicine. May 2012. DOI: 10.1111/j.1743-6109.2012.02668.x
URL Upon publication:

About the Author: Adam Ostrzenski, M.D., Ph.D., is affiliated with the Institute of Gynecology in St. Petersburg, FL. Dr. Ostrzenski is an internationally renowned gynecologic surgeon and a laureate of numerous domestic and international awards for his contribution to the advancement of women’s health.
To arrange an interview with an author, please contact Dr. Ostrzenski at

About the Journal:
The JSM is a peer-reviewed publication founded in 2004 and is the official journal of the International Society for Sexual Medicine, its regional affiliated societies and the International Society for the Study of Women’s Sexual Health. It publishes multi-disciplinary basic science and clinical research to define and understand the scientific basis of male and female sexual function and dysfunction and carries an Impact Factor of 3.957. For more information, please visit

NEW! Download The JSM mobile app for free to your smart phone or iPad at and keep up with the latest research published in The Journal of Sexual Medicine.

The International Society for Sexual Medicine (ISSM) was founded in 1982 for the purpose of promoting, throughout the international scientific community, research and knowledge in sexual medicine, considered as the subspecialty area of medicine that embraces the study, diagnosis and treatment of the sexual health concerns of men and women. The society has over 2700 members worldwide, with four regional societies that are affiliated with ISSM: the Asia Pacific Society for Sexual Medicine, European Society for Sexual Medicine, Latin American Society for Sexual Medicine, the Middle East Society for Sexual Medicine, and Sexual Medicine Society of North America. For more information please visit For more information, please visit

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