Vaginal discharge is normal, and most people produce less than one teaspoon per day. If you’re noticing more than that, or more than what’s typical for you, the cause is usually hormonal shifts, an infection, or a change in your reproductive health. The key question isn’t just how much discharge you have, but whether it’s also changed in color, texture, or smell.
What Counts as “Excessive”
There’s no strict cutoff that separates normal from excessive. Your baseline varies depending on where you are in your menstrual cycle, whether you’re on hormonal birth control, and your age. What matters most is a noticeable change from your own pattern. If you’re suddenly soaking through underwear or panty liners when you didn’t before, that’s worth paying attention to.
Normal discharge is clear to white, mild-smelling or odorless, and varies in thickness throughout the month. It’s produced by glands in the cervix and vaginal walls, and it serves a cleaning function, flushing out old cells and keeping the vaginal environment slightly acidic to prevent infection.
Hormonal Shifts That Increase Discharge
The most common reason for a temporary spike in discharge is ovulation. Rising estrogen levels around the middle of your cycle trigger your cervix to produce more mucus, and it takes on a slippery, stretchy, egg-white consistency. This is your body making it easier for sperm to travel. Once ovulation passes, discharge typically becomes thicker and decreases in volume.
Hormonal birth control can also change your discharge pattern. Estrogen-progestin contraceptives and hormonal IUDs alter the hormonal signals that control mucus production, sometimes increasing it, sometimes decreasing it. If you recently started or switched contraception and notice a change, that’s a likely explanation.
Perimenopause brings its own shifts. Fluctuating hormone levels can cause unpredictable changes in discharge volume and consistency as the body transitions toward menopause.
Pregnancy Discharge
If you’re pregnant, increased discharge is expected and has a protective purpose. Your body ramps up progesterone production, which causes the cervix to produce significantly more mucus. This extra fluid helps block harmful bacteria from reaching the uterus and the developing fetus. It also contributes to the mucus plug, a thick barrier that seals the cervix during pregnancy.
Pregnancy discharge (sometimes called leukorrhea) is typically thin, white or milky, and mild-smelling. If it turns green, yellow, or develops a strong odor during pregnancy, that signals something different and warrants a call to your provider.
Bacterial Vaginosis
Bacterial vaginosis, or BV, is the most common vaginal infection in people of reproductive age, and heavy discharge is one of its hallmarks. The discharge tends to be thin, grayish, and noticeably high in volume. The signature feature is a fishy odor, especially after your period or after sex. Both menstrual blood and semen have a higher pH than the vagina, which can disrupt the bacterial balance and trigger or worsen BV.
BV isn’t a sexually transmitted infection, though sexual activity can be a contributing factor. It happens when the normal balance of vaginal bacteria shifts, allowing certain anaerobic bacteria to overgrow. It’s treatable with antibiotics, but recurrence is common.
Yeast Infections
Yeast infections produce a distinctly different type of discharge: thick, white, and clumpy, often described as looking like cottage cheese. The volume may or may not increase significantly, but the texture change is unmistakable. Itching and irritation around the vulva are usually more prominent symptoms than the discharge itself. There’s typically no strong odor.
Yeast infections are caused by an overgrowth of fungus that normally lives in the vagina in small amounts. Antibiotics, high blood sugar, a weakened immune system, and hormonal changes can all tip the balance.
Sexually Transmitted Infections
Several STIs cause changes in discharge. Trichomoniasis produces a thin discharge that can be clear, white, yellowish, or greenish, often with a fishy smell. It frequently comes with itching, burning, redness, and discomfort when urinating. Chlamydia and gonorrhea can also increase discharge and cause pelvic pain, though many people with these infections have no symptoms at all, which is why routine screening matters.
If your discharge has changed and you’ve had a new sexual partner or unprotected sex, STI testing is a straightforward next step. These infections are all treatable, but left unaddressed, some can lead to more serious complications like pelvic inflammatory disease.
Cervical Ectropion
A less well-known cause of excessive discharge is cervical ectropion. This happens when the soft, mucus-producing cells that normally line the inside of the cervix become visible on the outside. These glandular cells produce more mucus than the smooth cells that typically cover the outer cervix, so the result is noticeably increased discharge, sometimes containing streaks of blood or mucus.
Cervical ectropion is strongly linked to higher estrogen levels, which is why it’s more common during adolescence, pregnancy, and ovulation, or in people taking estrogen-containing birth control. It’s not dangerous and often resolves on its own, but it can be treated if the discharge is bothersome.
Menopause and Low Estrogen
After menopause, discharge typically decreases because lower estrogen levels thin the vaginal walls and reduce moisture. Paradoxically, though, some people develop a thin, watery, sticky discharge that can be yellow or gray. This is a sign of vaginal atrophy, where the tissues become thinner, drier, and more fragile due to estrogen loss. Dryness, burning, and itching often accompany this type of discharge.
Signs That Discharge Needs Evaluation
Color, smell, and accompanying symptoms are more telling than volume alone. Discharge that looks green, yellow, or gray, smells fishy or foul, or resembles cottage cheese or pus points toward infection. Itching, burning, swelling around the vulva, pelvic pain, or pain when urinating all reinforce that something beyond normal variation is going on. Brown or red-tinged discharge outside your period is also worth investigating.
Diagnosing the cause usually requires more than describing your symptoms. A provider will typically check vaginal pH (elevated levels suggest BV or trichomoniasis), examine a sample under a microscope, and may order lab tests. This matters because BV and yeast infections can look similar to the untreated eye, and guessing wrong means using the wrong treatment. Studies show that medical history alone is insufficient for accurate diagnosis of vaginal infections and frequently leads to inappropriate treatment.
If your discharge has changed from what’s normal for you, whether in amount, color, smell, or texture, that shift is the signal worth acting on. Increased volume on its own, especially if it’s clear or white and coincides with ovulation, a new birth control method, or pregnancy, is almost always harmless.