- Urologists in Japan wanted to understand what is in spray liquid.
- They recruited 5 women to be satisfied by a man to find out.
- In the experiment, all 5 women were released fluid from their bladder while squirting.
Urologists in Japan wanted to get to the bottom of a long-running sex debate — when a woman squirts, is the fluid released is urine or something else? To find out, they conducted an experiment in which an indigo-colored liquid was injected into five women’s bladders.
Two of the women were in their thirties, two were in their forties and one was in their fifties, and they all said they had injected before during sexual encounters in the past.
Unlike vaginal lubrication, where a person’s vagina secretes a white and milky liquid when they are aroused, squirting involves a clear and odorless liquid. Squirting can happen before, during or after an orgasm and has a geyser-like quality, sex educator Marla Renee Stewart previously told Cosmopolitan.
After the doctors drained excess urine from each woman’s bladder using a urethral catheter, they injected them with 50 milliliters of a blue-colored saline solution. In another room, women received manual penetration from a male test subject the doctors recruited. They instructed the man to use his fingers and penis “in a way to facilitate squirting”.
When each of the five women injected, the doctors saw blue fluid coming out of their genitals in videos documenting the experiment. Their findings suggest that the fluid women produce when they inject comes at least partly from the bladder, the urologists wrote in their Aug. 24 article published in the International Journal of Urology.
Squirting has long baffled sex experts
There’s little research on squirting and how it really works, but there’s some evidence that it’s related to specific glands in the urethral sponge, which is embedded in a person’s vaginal walls and part of the urination process, Mind Body Green previously reported. .
Researchers have long debated whether squirting liquid contains pee, or whether it is a substance in its own right.
To test this, the urologists conducting the experiment tested and found levels of PSA in the fluid each woman secreted during penetration. PSA is a chemical found in semen, and some researchers believe the evidence is that the squirt of liquid is in fact not pee, but a substance related to arousal.
Still, there are other chemicals in spray liquid that are also found in the urine. Some researchers believe that people may involuntarily release small amounts of urine while injecting.
The amount of urine depends on when the person last urinated and how hydrated they are, sex researcher Zhana Vrangalova of New York University told Mind Body Green.
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