Squirting happens when fluid is expelled from the urethra during high sexual arousal, typically at or near orgasm. It’s a normal physiological response, and survey data suggests it’s more common than most people think: roughly 40 to 58% of women report experiencing it at some point.
Despite how often it occurs, the mechanics behind squirting have only recently become clearer. Here’s what the science actually shows about where the fluid comes from, what triggers the release, and why some women experience it while others don’t.
Where the Fluid Comes From
The fluid expelled during squirting comes primarily from the bladder. In a study that had participants drink blue dye before sexual stimulation, the discharged fluid came out blue in every case, confirming the bladder as the source. However, the fluid isn’t simply urine. Biochemical testing shows it’s significantly more dilute than normal urine, with lower concentrations of urea, creatinine, and uric acid. Think of it as a heavily diluted version of what the bladder normally holds, produced rapidly during arousal.
There’s also a second component. In four out of five participants in that same study, the fluid tested positive for PSA (prostate-specific antigen), a protein produced by the Skene’s glands. These small glands sit along the front wall of the vagina near the urethral opening, and they’re considered the female equivalent of the male prostate. They produce a thick, whitish secretion that mixes with the bladder fluid during expulsion. So squirting is really a blend: mostly dilute fluid from the bladder, with a smaller contribution from the Skene’s glands.
Ejaculation and Squirting Are Two Different Things
Researchers now distinguish between two separate events that often get lumped together. “Female ejaculation” in the strict sense refers to a small amount of thick, whitish fluid released from the Skene’s glands. This fluid is biochemically similar to some components of male semen, particularly in its PSA concentration. It’s typically a very small volume, sometimes so slight that it goes unnoticed.
“Squirting” or “gushing” refers to the larger, more visible release of clear, dilute fluid from the bladder. This is what most people picture when they use the word “squirt.” The two can happen at the same time, and they often do, but they originate from different structures and involve different mechanisms. Many women who squirt are experiencing both simultaneously without realizing they’re separate processes.
What Triggers It Physically
Squirting occurs at the height of sexual arousal, often during or just before orgasm. The specific type of stimulation varies. In research settings, some women squirted only with manual stimulation (fingers pressing against the front vaginal wall, the area sometimes called the G-spot), while others squirted during penetrative sex. There’s no single technique that reliably produces it.
What seems to matter most is the level of arousal rather than the specific type of touch. During intense arousal, blood flow to the pelvic region increases dramatically, the tissues surrounding the urethra become engorged, and the Skene’s glands fill with secretion. The bladder also appears to fill rapidly with dilute fluid during this process, even if a woman urinated shortly before. The combination of pelvic muscle contractions during orgasm and pressure on the front vaginal wall can then force that fluid out through the urethra.
Pelvic floor muscle tone likely plays a role too. The same muscles involved in orgasmic contractions are the ones that help expel the fluid. Women who have stronger awareness of or control over these muscles sometimes report being able to facilitate or even suppress the response.
Why Some Women Squirt and Others Don’t
The Skene’s glands vary considerably in size from person to person. Some women have well-developed glands with multiple ducts, while in others these glands are much smaller or less active. Since these glands contain androgen receptors (the same type of hormone receptors found in the male prostate), individual hormonal profiles may influence how developed the glands become and how much they contribute to the fluid expelled during arousal.
Anatomy isn’t the whole picture, though. Psychological factors matter too. Tension, self-consciousness, or actively trying to hold back the sensation (which can feel similar to the urge to urinate) can prevent the release. Many women who eventually experience squirting describe a moment of “letting go” as the key factor, suggesting that relaxation during peak arousal plays a significant role.
There’s no evidence that squirting indicates a “better” orgasm or higher sexual function. It’s simply one variation in the range of normal sexual response. Some women experience it regularly, some occasionally, and some never do.
Why It Feels Like Needing to Urinate
One of the most common questions women have about squirting is why the buildup feels so similar to urinary urgency. This makes complete anatomical sense: the fluid is passing through the urethra, and the bladder is involved in producing it. The Skene’s glands also sit right next to the urethral opening, so engorgement of these glands during arousal puts pressure on the same area that signals a full bladder.
This similarity causes many women to tense up or pull back from the sensation, which can interrupt arousal. Understanding that the fluid is not standard urine, even though it passes through the same channel, helps some women feel more comfortable with the experience. Emptying the bladder before sex can also reduce anxiety about the sensation, though it won’t necessarily prevent squirting since the bladder appears to refill with dilute fluid during arousal itself.