PARENT SESSION

Exhibition Hall (Room 517-AB)

Female - Sexual Dysfunction Time: -

Ultrasound of the G-spot (Female Prostate).

Stifter, Karl^*,1, Stackl, Walter², Grin, Wolfgang³, ¹ Austrian Society for Sexology, Vienna, Austria, Austria² Dep. of Urology, Hospital Rudolfsstiftung, Vienna, Austria, Austria³ Dep. of Gynecology, Hospital Rudolfsstiftung, Vienna, Austria, Austria

ABSTRACT- Objectives: In scientific literature there is a lot of confusion regarding the semantic and anatomic definition of the G-spot. Ernest Grä÷fenberg (1950) described it as an erogenous zone on the anterior wall of the vagina in front of the bladder neck. Whipple (2005), the namegiver of this spot, does not consider it a spot but a gland, the female prostate. In contrast for Lenck and Vanneuville (1992) it is identical with the urethral sphincter, for Bodansky (2002) it is part of the clitoris and for Hines (2001) it is simply a myth. This study was performed to find an anatomical structure which explains the sometimes large quantities of the female ejaculate and to contribute to a more precise concept formation of the G-spot. Material and Methods: A 45 year old woman reported regular ejaculations from the area of the urethra during orgasm. The collected volume ranged from 5 to 16 cc. The ejaculated fluid and spontaneously voided urine were analyzed for prostate-specific antigen (PSA), acid phosphatase (PAP), prostate-specific acid phosphatase (PSAP), creatinine, glucose and electrolytes. Transvaginal ultrasound was performed with a ATL HDI 5000. Results: The analysis of the ejaculate (urine) was 213 ng÷ml (0.8 ng÷ml) for PSA, 33.0 mg÷dl (178.0 mg÷dl) for creatinine and in a former study 329 U÷l (42 U÷l) for PAP, 271 U÷l (37÷U÷l) for PSAP, 30,5mg÷dl (223,7 mg÷dl) for creatinine, 127 mg÷dl ( 30 mg÷dl) for glucose and significant differences in electrolytes. The ultrasound demonstrated a 3 cm long excretory duct between urethra and anterior vaginal wall which ended at the level of the urethral meatus. Endoscopy with a 4 French ureteroscope showed a blind ending after 3 cm. There was no evidence of an urethral diverticulum. Conclusion: This is the first report of an excretory duct at the six'o'clock-position of the urethral meatus in a woman with orgasmic ejaculations. It shows that the variety of the paraurethral glands concerning position, extension and form, is much broader than reported in the literature and that the size can be much bigger. The sexological consequence of this finding is, that the corresponding vaginal erotic area can sometimes be more spacious than usually described. It underlines also the importance of the pelvic floor training for enhancing the probability of the coital orgasm.

Key words: g spot, female prostate, vaginal orgasm, pelvic floor training, female ejaculation