In 1950, Ernest Gräfenberg form New York, U.S.A. presented his findings related to
“the role of urethra in female orgasm.” Although his research did not focus on the role of the vagina in the female orgasm, in 1981, Addiego with his group named the vaginal erotogenic zone the “Gräfenberg zone”. Later on, the media introduced the term of G-spot. The G-spot has been adapted by the medical communities and the public-at-large around the globe which specifically addresses the vaginal role in female expression of sexuality. Since Gräfenberg did not work on the erotogenic aspect of the vagina, his name and the zone should not be used as a term for expression of the vaginal role in female sexuality.
G-Spot Functional Concept
The G-spot has been functioning as a concept of a physiologic phenomenon which expresses a woman’s personal sexual experiences. However, until now, the anatomy of the G-spot has not been identified. The absence of the documentation of the G-spot as an anatomic structure created considerable controversies and a biased interpretation of the scientific results worldwide leading to a monolithic clitoral model of female sexual response. However, women have held the unwavering position that there are distinct areas in the anterior vagina which are responsible for a sensation of great sexual pleasure. Therefore, it seems reasonable to accept the notion that women are equipped with a G-spot which is sensitive to tactile stimulation on the anterior vaginal wall.
G-Spot Existence: Indirect Documentation
Through the centuries, many attempts have been made to establish the anatomic existence, location, and size of the G-spot. It became one of the most intellectual-stimulating topics on the female sexual expression field. There are indirect scientific data which strongly support the physical presence of the G-spot. A very thoughtful scientific contribution to the challenging dilemma of the G-spot existence was the fact that the stimulation of the G-spot resulted in an approximately 50% swellingof the anterior distal vaginal wall and provided high levels of sexual arousal with a powerful orgasm. The G-spot gene has been identified and has been already incorporated into the Affymetrix GeneChip (microarrays of probes to match specified genes). The vaginal electric activities (the electrovaginogram) documented that a pacemaker was positioned to exist at the upper vagina evoking electric waves which could be recorded. This finding suggested that the vaginal pacemaker seemed to represent the G-spot which women reported as a small area of erotic sensitivity in the vagina.The ultrasonographic study postulated that clitoral bodies have a descending movement and come close to the distal (upper) anterior vaginal wall during a voluntary contraction and relaxation of the pelvic floor muscles and the anterior vaginal area demonstrates the particular sensitivity to stimulation corresponding to the G-spot location.
Also, it has been presented that women had reported the location of the G-spot on the anterior vaginal wall approximately 1/3 to ½ up from the vaginal introitus.A surgical dissection of the anterior vaginal wall is usually executed to the level of the pubocervical fascia (the endopelvic fascia) where site-specific defects can be identified and repaired. This traditional gynecologic procedure has been executed for decades and so far, no single scientific article reported any unusual anatomic structure corresponding to the G-spot being encountered during those many surgical interventions. Therefore, Professor Ostrzenski concluded that anterior vaginal wall, up to the pubocervical fascia most likely would not contain the G-spot and hypothesized that the G-spot maybe located deeper. Since it has been documented that stimulation of the anterior vaginal causes the vaginal wall to swell, Dr. Ostrzenski determined that this structure must consist of erectile tissues which causes the anterior vaginal wall to swell. Therefore, to test this hypothesis, the objective was established to dissect the anterior vaginal wall layer-by-layer to potentially identify the existence of the anatomic G-spot by exploring the space between the inferior surface of the pubocervical fascia and superior surface of the dorsal perineal membrane.
Recently, Professor Ostrzenski’s anatomic study documented that the G-spot creates a 350 angle between the urethra with the lower pole being positioned 3 mm from the urethra, and the upper pole being situated 15 mm from the urethra with the length of 8.1 mm. The G-spot is located much more deeply than it was previously postulated. It is a well-defined and uniformstructure within a sack and the G-spot appeared to be erectile tissue.