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Does preejaculatory penile secretion originating from Cowper's gland contain sperm?
Zvi Zukerman1, David B Weiss, Raoul Orvieto
1Department of Obstetrics and Gynecology, Rabin Medical Center, Petah Tikva, Israel.
Purpose:
To determine if spermatozoa are present in the preejaculatory penile secretion, originating from Cowper's gland.
Design:
Prospective clinical and laboratory study.
Setting:
Andrology and Sex Counseling Unit, Department of Obstetrics and Gynecology, Academic Teaching Hospital.
Patients:
Five patients referred for premature ejaculation, three for excessive fluid secreted during foreplay and four normal healthy volunteers.
Intervention:
Glass slide smears of preejaculatory Cowper's gland secretion obtained during foreplay from at least two different occasions, and semen samples after masturbation.
Main Outcome Measures:
Microscopic examination of air-dried smears, and routine semen analyses.
Results:
None of the preejaculatory samples contained sperm. All the patients had sperm in routine sperm analyses.
Conclusions:
Preejaculatory fluid secreted at the tip of the urethra from Cowper's gland during sexual stimulation did not contain sperm and therefore cannot be responsible for pregnancies during coitus interruptus.