The thick, white or milky fluid that appears during sexual arousal or orgasm comes from a combination of sources: vaginal lubrication pushed through the vaginal walls by increased blood flow, secretions from the Skene’s glands near the urethra, and cervical fluid that varies in texture throughout the menstrual cycle. The consistency, color, and amount depend on where you are in your cycle, your hydration level, and how aroused you are.
Where the Fluid Comes From
There isn’t a single source. Several structures contribute to the fluid produced during sex, and the creamy appearance is usually the result of these mixing together.
The most immediate source is vaginal lubrication. During arousal, blood flow to the genital area increases significantly. This pressure pushes fluid through the vaginal walls in a process called transudation. On its own, this fluid is typically clear and slippery, designed to reduce friction during penetration.
The Skene’s glands, two small structures located on either side of the urethral opening, add a second component. These glands swell during sexual stimulation and secrete a milky, mucus-like substance. The Skene’s glands develop from the same embryonic tissue that becomes the prostate in males, which is why they’re sometimes called the female prostate. The fluid they produce contains proteins similar to those found in semen (minus the sperm), including prostate-specific antigen, or PSA. In some women, these glands release fluid during orgasm in a way that resembles ejaculation.
Cervical fluid is the third contributor. Your cervix constantly produces fluid that changes in texture depending on where you are in your menstrual cycle. Around ovulation, when estrogen is highest, cervical fluid becomes more abundant, slippery, and stretchy. At other points in the cycle, it can be thicker, stickier, or pastier. When this cervical fluid mixes with arousal fluid during sex, the result is often the creamy, white appearance people notice.
Why It Looks White or Creamy
The white color comes primarily from the proteins and enzymes in the Skene’s gland secretions and cervical fluid. Arousal fluid on its own is usually clear, but once it combines with these other fluids, it takes on a more opaque, cream-like consistency. The thicker and more protein-rich the cervical fluid is at that point in the cycle, the more pronounced the effect.
This is also why the appearance changes from one encounter to the next. During the days around ovulation, you may produce more fluid overall, and it may look different than it does right before or after your period, when estrogen levels are lower and the vagina tends to feel drier. Hormonal birth control can also affect the amount and consistency of cervical fluid, since it suppresses the natural hormonal fluctuations that drive these changes.
What Triggers More Fluid
The degree of arousal matters more than almost anything else. Sustained stimulation increases blood flow to the pelvic area, which drives more lubrication through the vaginal walls and causes the Skene’s glands to swell further. The tissue surrounding the urethra, sometimes referred to as the G-spot area, contains the Skene’s glands, part of the internal clitoris, and the urethral sponge. Stimulating this region can produce a particularly strong fluid response because it engages multiple structures at once.
The nerve pathways involved run through the pudendal nerve, which connects the clitoris, vaginal walls, and pelvic floor muscles to the spinal cord. Stimulation of this nerve not only triggers muscle contractions but also reflexively increases blood flow and lubrication. During orgasm, rhythmic contractions of the pelvic floor muscles (typically 3 to 8 per orgasm, each lasting about a second) can push accumulated fluid outward, which is why many women notice the most fluid during or immediately after climax.
Hydration plays a practical role too. Since much of this fluid is water-based, being well-hydrated supports greater fluid production. Dehydration can make lubrication noticeably thinner or less abundant.
Creaming vs. Squirting vs. Lubrication
These three things are distinct, though they often get grouped together. Standard vaginal lubrication is the clear, slippery fluid produced by the vaginal walls during arousal. It’s a direct result of increased blood flow and serves to reduce friction.
Creaming refers to the thicker, white fluid that results from lubrication mixing with Skene’s gland secretions and cervical fluid. It tends to accumulate during prolonged stimulation and is most visible during or after penetration.
Squirting involves a larger volume of fluid expelled from the urethra, typically during intense stimulation of the front vaginal wall. This fluid is chemically different. It’s generally clear, more watery, and contains diluted components from the bladder along with PSA from the Skene’s glands. Not all women experience squirting. Estimates from clinical studies range widely, from about 5% to 54% of women, depending on how the question is asked and how ejaculation is defined.
Variation Between Women
The amount and appearance of fluid during sex varies enormously from person to person, and even from one encounter to the next in the same person. Skene’s glands themselves vary in size. Some women have larger, more active glands that produce noticeable secretions, while others produce very little from this source. This is normal anatomy, not a reflection of arousal level or sexual response.
Cycle phase has a strong influence. Estrogen peaks around ovulation, increasing both cervical fluid production and overall vaginal moisture. Many women report feeling wetter and having a higher sex drive during this window. Conversely, the days just before and during menstruation tend to bring drier conditions. Medications, stress, and age-related hormonal shifts (particularly during perimenopause and menopause, when estrogen declines) all affect fluid production as well.
Producing more or less fluid doesn’t indicate anything about health or arousal on its own. Some women produce significant amounts of creamy fluid with minimal stimulation, while others may be highly aroused and produce relatively little visible fluid. Both are within the normal range.