Squirting during sexual arousal and orgasm is a real, documented physiological event. Decades of imaging studies, biochemical analyses, and population surveys confirm that a substantial number of women experience it. The bigger question researchers have been untangling is not whether it happens, but what exactly is happening when it does, because the fluid involved turns out to be more complicated than most people assume.
Squirting and Female Ejaculation Are Not the Same Thing
One of the most persistent sources of confusion in both popular culture and clinical medicine is lumping squirting and female ejaculation together as if they were the same event. Research over the past two decades has made it increasingly clear that they are two distinct phenomena that happen to share an exit route through the urethra. They differ in volume, appearance, chemical makeup, and anatomical origin.
Squirting involves a relatively large expulsion of transparent, watery fluid. Depending on the person and the episode, this can be around ten milliliters or considerably more. Female ejaculation, by contrast, produces only a few milliliters of thicker, milky-white fluid. Both can occur during orgasm, and both can occur at the same time in the same person, which is part of why they get conflated so often.
The fluid in squirting originates primarily from the bladder. Ultrasound studies have captured the bladder rapidly filling during sexual arousal and then emptying at the moment of squirting. The fluid in female ejaculation, on the other hand, is secreted by the paraurethral glands, sometimes called the Skene glands or informally the “female prostate.” This secretion contains high concentrations of prostate-specific antigen (PSA), a marker also found in male prostatic fluid.
A 2022 narrative review in Clinical Anatomy summarized the distinction plainly: squirting is a massive transurethral expulsion from the urinary bladder, while female ejaculation is the secretion of a very small amount of fluid from the paraurethral glands, and the mechanisms underlying each are entirely different.1PubMed. Female ejaculation and squirting as similar but completely different phenomena: A narrative review of current research Keeping these two events separate in your mind makes the rest of the research much easier to follow.
What Is the Fluid Made Of
The composition of squirting fluid has been one of the most debated aspects. A widely cited 2015 study used ultrasound to monitor participants’ bladders before, during, and after sexual stimulation. The bladders were confirmed empty at the start, filled noticeably during arousal, and then emptied again when squirting occurred. Biochemical analysis showed the expelled fluid was chemically similar to dilute urine, though in most participants it also contained PSA, which does not come from the bladder itself. The researchers concluded that squirting is essentially the involuntary emission of urine during sexual activity, with a marginal contribution of prostatic secretions to the emitted fluid.2PubMed. Nature and origin of “squirting” in female sexuality
That finding understandably made headlines and left many people with the impression that squirting is “just pee.” But the picture is more nuanced than that shorthand suggests. For one thing, research comparing female ejaculate with pre-coital urine from the same women found that the ejaculate had lower levels of creatinine (a standard urinary waste marker) while containing elevated levels of PSA, prostatic acid phosphatase, and glucose, components more consistent with prostatic secretion than with ordinary urine.3Medical Hypotheses. Does female ejaculation serve an antimicrobial purpose? So the fluid that comes out during these events is, at minimum, a mixture, and its exact ratio of bladder-derived fluid to glandular secretion varies from person to person and episode to episode.
A case study that collected fluid from a single participant during orgasm captured two distinct fluids leaving the urethra in sequence: first, a clear and abundant watery liquid expelled in gushes, and then a smaller, thicker secretion. The initial gush had no apparent look or smell of urine.4The Journal of Sexual Medicine. New Insights from One Case of Female Ejaculation Single case studies carry limited weight on their own, but this observation aligns with the broader finding that squirting and ejaculation can happen simultaneously, producing a mixed fluid that does not fit neatly into one category.
The Anatomy Behind It
The paraurethral glands, or Skene glands, sit along the lower portion of the urethra. These tiny glandular structures have drawn increasing scientific attention because they share a striking number of features with the male prostate. Immunohistochemical studies have confirmed that female periurethral glands are immunoreactive for several markers of male prostatic tissue, including PSA, androgen receptor, and two developmental transcription factors associated specifically with prostate identity.5PubMed. The prostate in women: an updated histological and immunohistochemical profile of the female periurethral glands and their relationship to an implanted midurethral sling That same study found nerve markers in the glandular tissue and its blood supply, suggesting these glands are more actively innervated than previously appreciated.
Separate pathological studies have confirmed that even in clinical specimens removed for unrelated reasons, the tissue of the Skene glands consistently stains positive for PSA and prostatic acid phosphatase.6PubMed. Prostatic-type tissue in the lower female genital tract: a morphologic spectrum, including vaginal tubulosquamous polyp, adenomyomatous hyperplasia of paraurethral Skene glands (female prostate), and ectopic lesion in the vulva The glands vary considerably in size from person to person, which is one plausible reason why the volume and composition of fluid expelled during sexual activity differs so much between individuals. A person with larger, more developed paraurethral glands may produce more PSA-rich ejaculatory fluid alongside any bladder-derived squirting fluid, while someone with smaller glands may produce little to no detectable ejaculatory component.
Is It Just Incontinence
This is probably the most emotionally loaded question in the entire topic, and it deserves a careful answer. Coital incontinence, meaning involuntary urine leakage during sex, is a recognized clinical condition. It can happen during penetration or during orgasm, and it is more common in people with stress urinary incontinence or overactive bladder. A systematic review published in The Journal of Sexual Medicine found that the prevalence of coital incontinence ranged widely in the literature, from less than one percent to as high as two-thirds of participants depending on the population studied and how the question was asked. The same review reported that squirting and female ejaculation, while involving fluid that may resemble urine, are clinically distinct from incontinence.7PubMed. Female ejaculation orgasm vs. coital incontinence: a systematic review
The practical distinction matters. Coital incontinence is typically associated with underlying pelvic floor dysfunction and tends to cause distress specifically because the person experiencing it recognizes it as an unwanted loss of bladder control. Squirting, when it occurs, is generally tied to sexual arousal and orgasm in a way that feels reflexive and connected to pleasure rather than to an inability to hold urine. A 2024 systematic review and meta-analysis reinforced this, noting that dye studies and real-time ultrasound both confirmed that squirting episodes represent physiological, non-pathological processes rather than involuntary incontinence.8The Journal of Sexual Medicine. Female Ejaculation, Squirting, and Coital Incontinence: A Systematic Review and Meta-Analysis of Biochemical, Imaging, and Urodynamic Diagnostic Criteria
That said, the overlap between these categories is real. The bladder is involved in squirting. The fluid contains urinary components. For someone who already has pelvic floor concerns, it can be genuinely difficult to tell whether a particular episode was squirting or incontinence. Clinicians who work in this area tend to recommend paying attention to the context: did it occur alongside arousal and orgasm, or was it disconnected from sexual response? Was there a sense of bearing down or release, or did it feel like an accident? These experiential details, combined with any relevant urological history, help distinguish between the two.
How Common Is It
Prevalence estimates vary depending on how the question is framed and who is being asked, but squirting is clearly not rare. A nationally representative probability survey of U.S. women aged 18 to 93 found that about 40 percent reported having squirted at least once in their lifetime, with a median frequency among those who had experienced it of roughly three to five times.9PubMed. Vaginal Squirting: Experiences, Discoveries, and Strategies in a U.S. Probability Sample of Women Ages 18-93 A Swedish cross-sectional study found an even higher figure: 58 percent of women surveyed reported personal experience with ejaculation or squirting, and an additional 6 percent were unsure whether it had ever occurred.10PubMed Central. Women’s experiences of female ejaculation and/or squirting: a Swedish cross-sectional study
The gap between these numbers likely reflects cultural differences, differences in how the surveys defined squirting, and the persistent awkwardness people feel when reporting on a topic that is simultaneously hyped in pornography and stigmatized in everyday conversation. What both studies make clear is that squirting is a common experience across a wide age range, not an exotic anomaly limited to a small subset of women.
How Pornography Distorts the Picture
Pornographic depictions of squirting have created a set of expectations that do not align well with what most people experience. In porn, squirting is almost always presented as a dramatic, high-volume event that signals the peak of female pleasure and almost invariably accompanies orgasm. The volume is often exaggerated for the camera, and the implication is that a partner who can “make” someone squirt has unlocked some special level of sexual skill.
A qualitative study of young women’s squirting experiences, published in The Journal of Sexual Medicine, found that participants were acutely aware of this distortion. As one participant described it, pornography leads men to believe women must squirt and turns it into their goal, when in reality squirting is not reliably linked to orgasm or pleasure in the way porn suggests.11The Journal of Sexual Medicine. Experiences of young women in the practice of squirting: a descriptive qualitative study The pressure to perform squirting on demand can introduce anxiety into sexual encounters, which is roughly the opposite of what promotes arousal and genuine enjoyment.
The research evidence reinforces this disconnect. Squirting does not always accompany orgasm, orgasm does not always produce squirting, and the intensity of squirting says nothing reliable about the quality of the sexual experience. Some people squirt regularly and find it pleasurable. Others squirt occasionally and feel neutral about it. Some find it distracting or embarrassing, particularly when a partner treats it as a performance metric. Treating squirting as either the ultimate goal or something shameful misses the reality that it is simply a physiological response that varies enormously from person to person.
What Triggers It
Most documented cases involve stimulation of the anterior vaginal wall, the area sometimes referred to as the G-spot area. In the case study mentioned earlier, squirting occurred after five to ten minutes of digital stimulation targeting that specific region.4The Journal of Sexual Medicine. New Insights from One Case of Female Ejaculation This makes anatomical sense because the paraurethral glands and the spongy tissue surrounding the urethra sit directly behind the anterior vaginal wall, so pressure in that area stimulates both the glandular tissue and the urethral structures involved.
However, squirting is not exclusively tied to one type of stimulation. Survey data show that women report squirting during penetrative intercourse, during clitoral stimulation, and during combined stimulation. The common thread seems to be sufficient arousal and, often, some form of bearing-down pelvic engagement during or just before orgasm. Because the pelvic floor muscles contract rhythmically during orgasm, and because those contractions can exert pressure on the bladder and urethra, the mechanical conditions for fluid expulsion are naturally present in many orgasmic experiences. Why some people squirt and others do not, given similar stimulation, remains an open question. Anatomical variation in gland size, differences in pelvic floor tone, and individual neurological sensitivity all likely contribute.
A Long History of Recognition and Dismissal
Female ejaculation and squirting are not newly discovered phenomena. A comprehensive historical review traced references back to at least the fourth century in Chinese Taoist texts. Ancient Indian writings, including several Kāmaśāstra works from the seventh century onward, described both female ejaculation and the area now called the G-spot in considerable detail. In Western medicine, Aristotle wrote about the emission of female fluid around 300 B.C., and Galen discussed it in the second century. The Dutch anatomist Reinjier De Graaf, in the seventeenth century, provided the first scientific description of female ejaculation and was the first to refer to the periurethral glands as the female prostate.12PubMed. The history of female ejaculation
Despite this long record, the phenomenon was largely dismissed or ignored in Western medicine through much of the twentieth century. The dominance of Freudian psychoanalytic frameworks, which categorized female sexual responses in narrow and often pathologizing terms, contributed to a clinical culture that treated any fluid expulsion during sex as either incontinence or fabrication. It was not until the 1980s, when researchers began using biochemical assays and imaging tools, that the scientific conversation started to shift toward treating squirting and ejaculation as phenomena worthy of serious study on their own terms.
Why the Science Is Still Catching Up
Relative to many other areas of human physiology, the research on squirting and female ejaculation remains thin. Sample sizes in most studies are small, sometimes involving fewer than ten participants. The imaging and biochemical work, while consistent in its broad conclusions, has been conducted on a handful of volunteers willing to be sexually stimulated in a laboratory while connected to ultrasound equipment, which is not a setting that lends itself to large sample recruitment. Even the recent systematic reviews and meta-analyses are working with a limited pool of primary studies.
Funding is part of the problem. Research into female sexual physiology has historically received far less funding than research into male sexual function, and studies specifically investigating squirting face additional institutional skepticism. Ethics review boards, grant committees, and journal editors have sometimes treated the topic as either trivial or prurient, making it harder for researchers to conduct the larger, more rigorous studies that would fill the remaining gaps. The field has made genuine progress in the past fifteen years, but major questions about individual variation, the neurological pathways involved, and whether there is any functional or evolutionary purpose remain largely unanswered.
On the evolutionary front, the broader question of why women have orgasms at all is still debated. Two main hypotheses persist: one suggests female orgasm evolved to play a role in mate selection, while the other proposes it has no independent adaptive function and exists only because women and men share early developmental pathways in which orgasmic capacity is built into the blueprint for both.13PubMed. Why women have orgasms: an evolutionary analysis Squirting fits awkwardly into both frameworks. It may be a byproduct of the anatomical proximity of the bladder, urethra, and erectile tissue in the pelvis, with no adaptive purpose of its own. Or it may have some function that has not yet been identified. Neither hypothesis has won out, and the data needed to resolve the question are not close to being collected.