Female ejaculation is characterized as an expulsion of fluid from or near the vagina during or before an orgasm. It is also known colloquially as squirting or gushing, although these are considered to be different phenomena in some research publications.
To date, there have been no conclusive or major studies relating to female ejaculation. Much of the problem in arriving at a consensus relates to a failure to adopt generally agreed-on definitions or research methodology. Research has used highly selected individuals, case studies, or very small numbers of subjects, making generalization difficult. Scientists have found evidence that women who 'squirt' are expelling one of two different types of liquid - one pure urine, and the other a combination of urine and fluid believed to be secreted by the paraurethral ducts through and around the human female urethra, but the exact source and nature of the fluid continue to be a topic of debate among medical professionals, which is also related to doubts over the existence of the G-spot.
Dr. Samuel Salama, a gynaecologist at the Parly II private hospital in Le Chesnay, France, and his colleagues were the first to investigate the nature and origins of the fluid using ultrasound scans, to discover that the ejaculate originates in a woman's bladder - and is made up mostly of urine.
First, these women were asked to provide a urine sample. An ultrasound scan of their pelvis confirmed that their bladder was completely empty. The women then stimulated themselves through masturbation or with a partner until they were close to having an orgasm – which took between 25 and 60 minutes.
A second pelvic ultrasound was then performed just before the women climaxed. At the point of orgasm, the squirted fluid was collected in a bag and a final pelvic scan performed.
Even though the women had urinated just before stimulation began, the second scan – performed just before they climaxed – showed that their bladder had completely refilled. Each woman’s final scan showed an empty bladder, meaning the liquid squirted at orgasm almost certainly originated from the bladder.
A chemical analysis was performed on all of the fluid samples. Two women showed no difference between the chemicals present in their urine and the fluid squirted at orgasm.
The other five women had a small amount of prostatic-specific antigen (PSA) present in their squirted fluid – an enzyme not detected in their initial urine sample, but which is part of the “true” female ejaculate
PSA, produced in men by the prostate gland, is more commonly associated with male ejaculate, where its presence helps sperm to swim. In females, says Salama, PSA is produced mainly by the Skene glands.
Female ejaculation during an orgasm, can either be plain old urine, or urine that's been diluted by fluids from the female prostate gland.
The remaining mysteries surrounding this phenomenon are whether or not it serves some kind of adaptive function, and why so few women are able to do it. Researchers think it could have to do with perhaps some women not producing PSA at all, or maybe the size and shape of an individual's prostate gland comes into play.
Why some women experience these different types of ejaculation and others don’t is not yet clear, says Salama, but he believes every woman is capable of squirting “if their partner knows what they are doing”.
when we talk about female ejaculation, we should really only be referring to when PSA is released, not urine.
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