A squirting orgasm refers to the release of fluid from the urethra during sexual arousal or climax. About 40% of adult women in the U.S. report having experienced it at least once in their lifetime. Despite how often it appears in popular culture, the science behind squirting is more nuanced than most people realize, and it’s actually a distinct phenomenon from what researchers call female ejaculation.
Squirting and Female Ejaculation Are Different
One of the biggest sources of confusion is that squirting and female ejaculation get lumped together as the same thing. They’re not. They involve different fluids, different volumes, and different sources in the body, though they can happen simultaneously.
Female ejaculation is the release of roughly 1 milliliter of thick, milky white fluid from the Skene’s glands, two small ducts located on either side of the urethra. These glands are sometimes called the “female prostate” because the fluid they produce contains proteins also found in male semen. The volume is small enough that many people don’t even notice it.
Squirting, by contrast, involves a much larger volume of clear fluid, ranging from tens to hundreds of milliliters, expelled from the urethra. It’s the dramatic, visible release most people picture when they hear the term. The two can occur at the same time, which is why squirting fluid sometimes contains trace amounts of the proteins associated with ejaculation.
Where the Fluid Comes From
Ultrasound studies have traced the source of squirting fluid to the bladder. In one well-known study, researchers performed pelvic ultrasounds at three points: after participants emptied their bladders, during sexual stimulation just before squirting, and immediately after. Every participant’s bladder was confirmed empty at the start. During arousal, the bladder rapidly refilled. After squirting, it was empty again.
Chemically, the fluid contains urea, creatinine, and uric acid, all compounds produced by the kidneys and collected in the bladder. This is why researchers describe it as a diluted form of urine, though “diluted” is a key word here. The fluid typically has a lower density than regular urine and contains little to no glucose or fructose. It also frequently contains small amounts of prostate-specific antigen from the Skene’s glands, making it a chemical hybrid rather than straightforward urine.
The Role of the Skene’s Glands
The Skene’s glands sit on either side of the urethral opening and are small enough that they’re difficult to see. During sexual arousal, increased blood flow to the area causes them to swell. This engorgement is part of what produces the sensation of fullness or pressure that many people describe before squirting occurs.
These glands provide lubrication during sex and can release their milky fluid during orgasm. Not everyone’s Skene’s glands are the same size or equally active, which is one reason some people squirt easily while others never do. The glands vary considerably from person to person, and researchers believe this anatomical variation largely explains the differences in who experiences ejaculation or squirting.
What It Feels Like
There’s no single way squirting feels. Some people describe it as intensifying an orgasm, adding a sensation of release or letting go on top of the pelvic contractions of climax. Others experience it as a separate physical event that doesn’t necessarily feel orgasmic on its own. The sensation can also vary from one experience to the next in the same person.
Squirting doesn’t require an orgasm. Some people squirt during high arousal well before climax, and some experience it without orgasming at all. The term “squirting orgasm” implies the two always go together, but they’re better understood as overlapping experiences that sometimes coincide. The International Society for Sexual Medicine notes that squirting can occur simply from arousal, not only from orgasm.
A common sensation leading up to squirting is a feeling of pressure, similar to needing to urinate. This makes sense given the bladder’s involvement. Many people who squirt report that the first time it happened, they initially thought they had lost bladder control, only to realize afterward that the experience was tied to arousal.
How Common It Is
A U.S. probability survey of women ages 18 to 93 found that 40% had squirted at least once. Among those who had, the median frequency was three to five times total. So while it’s far from rare, it’s also not something most people experience regularly. The wide age range in that survey suggests it’s not limited to any particular life stage.
Plenty of people with vulvas never squirt, and that’s entirely normal. The variation in Skene’s gland size, pelvic floor strength, and individual anatomy all play a role. Porn has created an outsized expectation around squirting, often depicting it as a universal marker of intense pleasure. In reality, it’s one of many possible responses during sex, neither better nor worse than any other.
The “Is It Urine?” Question
This is the question most people actually want answered, and the honest answer is: partially, but it’s more complicated than a yes or no. The fluid originates in the bladder and shares key chemical markers with urine. But it also frequently contains secretions from the Skene’s glands that are not found in urine, making its composition distinct.
Some researchers have found that squirting fluid is essentially identical to urine in its chemical makeup. Others have found it to be significantly more diluted, with lower concentrations of urea and creatinine than a typical urine sample. The discrepancy likely comes down to differences between individuals and the difficulty of studying this in controlled settings. What’s consistent across studies is that the bladder fills rapidly during arousal and empties during squirting, and the fluid is not the same as the thick, white ejaculate from the Skene’s glands.
For most people, knowing the exact biochemical breakdown matters less than understanding that squirting is a normal physiological response to sexual stimulation. The fluid is not a sign of incontinence, even though the bladder is involved. It’s an involuntary release triggered by arousal, distinct from the loss of bladder control that happens with stress incontinence.