A noticeable increase in vaginal discharge is one of the most common concerns people search for, and in most cases it’s completely normal. Your body produces between 1 and 3 milliliters of vaginal fluid every 24 hours, but that amount shifts constantly depending on where you are in your menstrual cycle, whether you’re pregnant, what products you’re using, and whether an infection is present. Understanding what’s driving the change helps you figure out whether you can relax or whether something needs attention.
Your Cycle Changes Everything
Estrogen is the main driver of discharge volume. As estrogen rises in the first half of your cycle, it physically changes the cells lining your cervix, making them more flexible and more permeable to fluid. That’s why discharge ramps up dramatically as you approach ovulation, typically around days 10 to 14 of a 28-day cycle. During this window, discharge becomes slippery, stretchy, and resembles raw egg whites. It can feel like a lot, and that’s by design: this type of cervical mucus helps sperm travel.
After ovulation, estrogen drops, and discharge dries up noticeably. From roughly day 15 until your next period, you may have very little discharge or almost none at all. Then, right after your period ends, it tends to be scant, white or slightly yellow, and tacky or sticky. The midcycle days, roughly days 7 to 9, produce a creamier, yogurt-like consistency that’s cloudy and wet. If you’ve suddenly noticed more discharge, check where you are in your cycle. You may simply be in the high-estrogen stretch you hadn’t paid attention to before.
Pregnancy Increases Discharge Significantly
If you’re pregnant, a steady increase in discharge is expected and serves a purpose. The extra fluid helps block infections from traveling up through the vagina to the uterus. Healthy pregnancy discharge is thin, clear or milky white, and doesn’t smell unpleasant. The volume keeps climbing as pregnancy progresses, and toward the very end, you may notice thick, jelly-like pink mucus. That’s the mucus plug from the cervix coming away, sometimes called a “show,” and it signals labor is approaching.
Signs That Point to an Infection
Not all increases in discharge are harmless. Infection accounts for 70 to 90 percent of cases where vaginal symptoms become bothersome enough to seek care. Three infections cause the vast majority of problems:
- Bacterial vaginosis (BV) is the most common, responsible for 40 to 50 percent of infectious cases. It produces a thin, watery discharge with a distinctly fishy smell. The odor often gets stronger after sex.
- Yeast infections account for 20 to 25 percent of cases. The discharge is thick, white, and clumpy, often described as looking like cottage cheese. It typically has little or no odor, but it comes with intense itching, redness, swelling around the vulva, and a burning sensation during urination or sex.
- Trichomoniasis makes up 15 to 20 percent of cases. It can produce a clear, white, yellowish, or greenish discharge that’s often thin and has a fishy smell. It’s a sexually transmitted infection, so it requires treatment for both partners.
A healthy vagina maintains a pH between 3.8 and 4.5. Infections like BV and trichomoniasis push that pH above 4.5, which disrupts the protective bacteria that normally keep things in balance. Over-the-counter pH test strips can give you a quick read at home, though they can’t tell you which specific infection you have.
Products and Irritants Can Trigger It Too
Sometimes increased discharge isn’t caused by an infection at all. Your vaginal tissue can react to chemical irritants the same way your skin reacts to a product it doesn’t like: with inflammation and extra fluid production. Common culprits include scented soaps, vaginal sprays, douches, scented detergents, fabric softeners, sexual lubricants, and spermicides. Even switching to a new brand of any of these can set off a reaction.
If you recently introduced a new product and noticed a change, try eliminating it for a week or two. Non-infectious vaginitis usually resolves once the irritant is gone. The discharge from irritation tends to lack the strong odor or unusual color you’d see with an infection, but it can still cause itching and discomfort.
Other Factors That Increase Volume
Several everyday situations can temporarily raise the amount of discharge you notice. Sexual arousal triggers extra lubrication, which is distinct from cervical mucus but adds to the overall wetness. Antibiotic use can disrupt vaginal bacteria and lead to a yeast overgrowth or BV. A retained foreign body, like a forgotten tampon or piece of condom, can cause a sudden increase in foul-smelling discharge. Hormonal contraceptives shift estrogen levels, which directly affects how much fluid your cervix produces. Even exercise and heat can make you more aware of discharge that was already there.
What Warrants a Closer Look
Clear or white discharge that changes in volume throughout your cycle, has no strong odor, and doesn’t come with itching or pain is almost always normal. Pay attention if you notice any of these changes:
- Color shifts: greenish, bright yellow, or grey discharge
- Strong or fishy odor that persists
- Cottage cheese texture with itching or burning
- Bleeding or spotting between periods
- Pelvic pain or fever alongside increased discharge
These patterns point toward infections or conditions that respond well to treatment but won’t clear up on their own. BV and trichomoniasis both require specific treatment, and untreated STIs can lead to complications over time. A simple swab test can identify exactly what’s going on, and most causes are straightforward to resolve.
If your discharge looks and smells the way it usually does and you’re just noticing more of it, your body is likely doing exactly what it’s supposed to. Tracking the pattern against your cycle for a month or two can be reassuring: you’ll start to see the predictable rise and fall that estrogen drives, and the volume that seemed alarming will start to make sense.