Coitus as Revealed by Ultrasound in One Volunteer Couple

Abstract

Introduction The anatomy and function of the G-spot remain highly controversial. Ultrasound studies of the clitoral complex during intercourse have been conducted to gain insight into the role of the clitoris and its relation to vagina and urethra during arousal and penetration. Aim Our task was to visualize the anterior vaginal wall and its relationship to the clitoris during intercourse. Methods The ultrasound was performed during coitus of a volunteer couple with the Voluson® General Electric® Sonography system (Zipf, Austria) and a 12-MHz flat probe. The woman was in a gynecologic position, and her companion penetrated her with his erected penis from a standing position. We performed a coronal section on the top of the vulva during the penetration. Main Outcome Measure We focused on the size of the clitoral bodies before and after coitus. Results The coronal section demonstrated that the penis inflated the vagina and stretched the root of the clitoris that has consequently a very close relationship with the anterior vaginal wall. This could explain the pleasurable sensitivity of this anterior vaginal area called the G-spot. Conclusions The clitoris and vagina must be seen as an anatomical and functional unit being activated by vaginal penetration during intercourse.

Female sexual arousal: Genital anatomy and orgasm in intercourse

“…This explanation is plausible given the configuration between penile shape and clitoral location as revealed in MRI or ultrasound images of men and women during coitus (Schultz, et al, 1999; Buisson, et al 2010). However, without evidence of increased direct penile-clitoral contact during intercourse in women with shorter CUMD measurements it is not possible to conclude whether this is the mechanism through which CUMD affects orgasm in intercourse.…”

“Standard Operating Procedures for Female Orgasmic Disorder” is not Based on Best Evidence

“…Evidence suggests that the 'clitoral complex' is also stimulated during vaginal penetration" (p. 76). In so stating, they referred to some evidence [15] that the penis has the potential to stimulate the clitoris (either directly or through stimulation of adjacent structures including perhaps through the anterior vaginal wall). However, these findings do not argue for a lack of physiological difference between vaginal and clitoral orgasms.…”

The whole versus the sum of some of the parts: toward resolving the apparent controversy of clitoral versus vaginal orgasms

“…The engorged clitoris, then, increased the likelihood that orgasm could be experienced from both external clitoral glans stimulation and internal stimulation of the clitoral root (posterior portions of the clitoral complex) that folded around the anterior vaginal wall. Buisson, Foldes, Jannini, and Mimoun (2010) evaluated the interaction between the vagina and clitoris during coitus, visualizing live through an ultrasound scanner the anterior vaginal wall and its relation to the clitoris during penile–vaginal intercourse. The volunteer woman was on her back with her legs up when her male partner penetrated her.…”