Squirting is the involuntary release of fluid from the urethra during sexual arousal or orgasm. The fluid comes primarily from the bladder, though it often contains small contributions from nearby glands. It is a normal physiological response, not a sign of a medical problem, and it is distinct from both urination and the smaller-volume secretion known as female ejaculation.
What the Fluid Actually Is
For years, the composition of squirting fluid was debated. Ultrasound and biochemical studies have now clarified the picture. In one well-known study, researchers performed ultrasounds on women at three points: before arousal, just before squirting, and just after. Before arousal, the bladder was empty. During sexual stimulation, the bladder filled noticeably. Immediately after squirting, it was empty again. The fluid contained urea, creatinine, and uric acid at concentrations similar to urine.
But it’s not purely urine. In five out of seven participants in that same study, the fluid also contained PSA, a protein produced by the Skene’s glands (sometimes called the female prostate). These small glands sit on either side of the urethra. A separate study using dye injected into the bladder confirmed this dual origin: the expelled fluid was visibly dye-colored in every participant, proving it came from the bladder, yet four out of five women also tested positive for Skene’s gland secretions. So the short answer is that squirting fluid is mostly dilute urine mixed with a small amount of prostatic secretion.
Squirting vs. Female Ejaculation
These two terms are often used interchangeably, but researchers now treat them as separate events. Female ejaculation involves a small quantity of thick, whitish fluid that originates in the Skene’s glands. Squirting involves a much larger volume of watery, clear fluid that comes primarily from the bladder. Both can happen during the same sexual experience, and many people don’t distinguish between them in the moment, but the source and volume are different.
This distinction matters partly because squirting can produce a noticeable amount of liquid. As one participant in a large survey put it: “Incredibly great, but it makes a huge mess.” Female ejaculation, by contrast, may go unnoticed because the volume is so small.
What Triggers It
Squirting is most commonly associated with stimulation of the front wall of the vagina, the area historically referred to as the G-spot. Current research suggests this area isn’t a single distinct structure but rather a zone where the clitoris, urethra, and vaginal wall are all in close proximity. Stimulating this region indirectly puts pressure on all three structures at once, which is why the sensation feels different from external clitoral stimulation alone.
Some women squirt from manual stimulation, others from penetrative sex. Stronger orgasms tend to occur when clitoral stimulation, front-wall vaginal stimulation, and oral sex are combined in the same session, and squirting is more likely during these intense, multi-source orgasms. That said, squirting doesn’t always accompany orgasm, and orgasm doesn’t always produce squirting. The two are related but independent.
What It Feels Like
Women who experience squirting describe it in varied ways. Common descriptions include a warm, rising sensation from the lower abdomen, building pelvic tension, and then an overwhelming release. One woman in a large qualitative study described it as an “enormously overwhelming wave of lust, shaking, shuddering.” Others connect it specifically to penetration combined with vibration. The sensation often includes a feeling of pressure or fullness just before the fluid is released, which some women initially mistake for needing to urinate.
That resemblance to the urge to urinate is not coincidental, given that the fluid does come from the bladder. Many women report that relaxing into the sensation rather than tensing against it is what allows squirting to happen. The experience is generally described as pleasurable, though the volume of fluid can be surprising or inconvenient.
Squirting vs. Urinary Incontinence
Because squirting involves fluid from the bladder, a reasonable question is whether it’s just incontinence by another name. Clinically, the two are considered different. Coital incontinence, or leaking urine during sex, is caused by bladder dysfunction such as an overactive bladder muscle or urethral weakness. It typically happens with physical pressure on the abdomen (like during thrusting) rather than at the moment of orgasm, and it is often accompanied by incontinence in non-sexual situations too.
Squirting, by contrast, occurs in women with normal bladder function. The bladder fills rapidly during arousal in a way that doesn’t happen outside of sexual stimulation, and the release is tied to orgasm or intense arousal rather than to mechanical pressure. Researchers emphasize that recognizing this difference prevents women from being incorrectly diagnosed with a bladder disorder or feeling that a normal sexual response is something that needs treatment.
How Common It Is
Estimates vary widely because squirting is underreported and inconsistently defined in surveys. Many women experience it occasionally rather than every time they have sex. The volume can range from a small amount that’s barely noticeable to enough to soak through sheets. Frequency and volume differ from person to person and even from one sexual encounter to the next, depending on hydration, arousal level, and the type of stimulation involved. Not experiencing squirting is equally normal. It is one of many possible physiological responses during sex, not a benchmark of arousal or orgasm quality.