A noticeable increase in vaginal discharge is one of the most common reproductive health concerns, affecting roughly one in ten women in any given year. Most of the time, the change is completely normal and driven by hormonal shifts your body cycles through every month. But certain colors, textures, and smells can signal an infection or other condition worth addressing.
Your Cycle Changes Discharge Throughout the Month
The single biggest reason you might suddenly have more discharge is where you are in your menstrual cycle. Estrogen, the hormone that rises in the first half of your cycle, directly increases the amount of fluid your cervix produces. It does this by making cervical cells more flexible and more permeable, essentially opening tiny spaces between cells so fluid flows more easily from the bloodstream into the cervical canal. The result is a visible increase in discharge that peaks right around ovulation.
On a typical 28-day cycle, the pattern looks roughly like this:
- Days 1 to 4 (after your period): Dry or tacky, white or slightly yellow.
- Days 4 to 6: Sticky, slightly damp, white.
- Days 7 to 9: Creamy, yogurt-like, wet and cloudy.
- Days 10 to 14 (around ovulation): Stretchy, slippery, resembling raw egg whites. This is the wettest phase, lasting about three to four days.
- Days 15 to 28: Dries up again until your next period.
If you’re noticing more discharge than usual and you’re in that day 7 to 14 window, your body is likely doing exactly what it’s supposed to do. The slippery, egg-white texture around ovulation exists to help sperm travel, and it can feel like a significant amount compared to the drier days you’re used to. Many people only notice this pattern once they start paying attention to it.
Pregnancy and Hormonal Birth Control
Pregnancy causes a sustained rise in estrogen, which triggers the same fluid-producing mechanism that drives ovulatory discharge, just on a much larger and more constant scale. The placenta produces high levels of estrogen that promote increased secretion from the vaginal lining. This normal pregnancy discharge, sometimes called leukorrhea, is typically thin, white or milky, and mild-smelling. It can start early, sometimes before you even know you’re pregnant, and it tends to increase as the pregnancy progresses.
Hormonal birth control can have a similar effect. Methods that alter your estrogen or progesterone levels, like the pill, patch, or hormonal IUD, can shift your baseline amount of discharge up or down depending on the formulation. If you recently started, stopped, or switched birth control, that alone could explain the change.
Bacterial Vaginosis
Bacterial vaginosis (BV) is the most common vaginal infection, and increased discharge is its hallmark symptom. BV happens when the normal balance of bacteria in your vagina shifts, allowing certain types to overgrow. A healthy vagina maintains a pH between 3.8 and 4.5. When BV develops, the pH climbs above 4.5, and the protective bacterial balance breaks down.
BV discharge has a distinct profile: thin, milky in consistency, and it smoothly coats the vaginal walls rather than appearing clumpy. The most recognizable sign is a fishy odor, which often becomes stronger after sex. The color can range from white to grey. If your increased discharge fits this description, BV is a strong possibility.
Prolonged stress doesn’t cause BV directly, but it can weaken your immune response enough to tip the bacterial balance. This is one reason BV sometimes appears during stressful life periods without any obvious trigger like a new sexual partner.
Yeast Infections
A vaginal yeast infection produces thick, white discharge that looks like cottage cheese. Unlike BV, it usually doesn’t have a strong smell. The defining features are intense itching, soreness, and sometimes a burning sensation when you urinate. If your extra discharge comes with significant itching and that chunky texture, a yeast overgrowth is the likely cause.
Yeast infections are triggered by anything that disrupts your vaginal environment: antibiotics, high blood sugar, a weakened immune system, or sitting in wet clothing for extended periods. They’re extremely common and generally straightforward to treat.
Sexually Transmitted Infections
Some STIs cause increased or unusual discharge, but the appearance tends to be different from what you’d see with BV or yeast.
- Gonorrhea produces thick, cloudy, or bloody discharge.
- Trichomoniasis causes discharge that can be clear, white, greenish, or yellowish, often with a frothy texture.
- Chlamydia can increase discharge, though it frequently causes no symptoms at all, which is why it often goes undetected.
STI-related discharge may come with other symptoms like pain during urination, pelvic pain, or bleeding between periods. But some STIs produce only a subtle change in discharge with no pain, so a change in color or smell alone is worth noting, especially after a new sexual partner.
Other Everyday Causes
Sexual arousal increases vaginal lubrication, which can be mistaken for a general increase in discharge. Exercise, particularly intense workouts, can temporarily increase blood flow to the pelvic area and produce more fluid. Even something as simple as wearing tight, non-breathable clothing can make you more aware of discharge that would otherwise go unnoticed.
Irritants like scented soaps, douches, and laundry detergents can inflame vaginal tissue and trigger a protective increase in fluid production. If your discharge increased after switching a product, that connection is worth exploring before assuming something more serious.
When the Change Matters
Normal discharge is clear to white, mild-smelling or odorless, and varies in consistency with your cycle. The changes worth paying attention to are the ones that fall outside this range. Specifically, look for discharge that is foul-smelling, green or yellow and frothy, thick and cottage cheese-like with itching, or accompanied by pelvic pain, bleeding between periods, pain during urination, or blisters and sores.
A useful baseline: track your discharge for one full cycle so you know your own pattern. What feels like “more than usual” during the ovulatory window is often just a normal peak you hadn’t noticed before. But if the texture, color, or smell has genuinely changed, or if the increase comes with any pain or itching, that’s your body flagging something that needs attention.