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Here, the researchers take it one step further by performing ultrasounds before and after ejaculation, as well as testing the biochemical properties of the liquid. It turns out that not only is it chemically identical to urine, but the bladder empties during the period of ejaculation coinciding with orgasm.

To date, both the nature and the origin of squirting remain controversial. In this investigation, we not only analyzed the biochemical nature of the emitted fluid, but also explored the presence of any pelvic liquid collection that could result from sexual arousal and explain a massive fluid emission.

METHODS: Seven women, without gynecologic abnormalities and who reported recurrent and massive fluid emission during sexual stimulation, underwent provoked sexual arousal.

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Pelvic ultrasound scans were performed after voluntary urination US1and during sexual stimulation just before US2 and after US3 squirting. Urea, creatinine, uric acid, and prostatic-specific antigen PSA concentrations were assessed in urinary samples before sexual stimulation BSU and after squirting ASUand squirting sample itself S.

After a variable time of sexual excitation, US2 just before squirting showed noticeable bladder filling, and US3 just after squirting demonstrated that the bladder had been emptied again.

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