Vaginal discharge is something your body produces every day, and in most cases, it’s completely normal. It’s a mix of fluid, old cells, and bacteria that your vagina makes to keep itself clean, moist, and protected from infection. The amount, color, and texture change throughout your menstrual cycle, during pregnancy, and at different life stages. What matters is knowing what’s typical for you, so you can recognize when something has actually shifted.
What Normal Discharge Looks Like
Healthy discharge is generally clear, white, or off-white. It can range from watery to sticky to thick, depending on where you are in your cycle. It either has no smell or a very mild one. Some days you’ll notice more of it, other days barely any. All of this is normal.
Your vagina maintains a slightly acidic environment, with a pH typically between 3.8 and 4.5. This acidity is part of how your body fights off harmful bacteria. The discharge itself is one of the tools your body uses to maintain that balance, flushing out old cells and keeping the vaginal lining healthy.
How Discharge Changes Through Your Cycle
If you menstruate, your discharge follows a predictable pattern each month driven by shifting hormone levels. Right after your period, you may notice very little discharge, and what’s there tends to be dry or pasty. As you move toward the middle of your cycle, it gradually becomes creamier.
Around ovulation (roughly days 10 to 14 of a 28-day cycle), discharge changes dramatically. It becomes clear, wet, stretchy, and slippery, often compared to raw egg whites. This happens because rising estrogen levels signal your cervix to produce this specific type of mucus, which helps sperm travel more easily. After ovulation, discharge typically thickens again and becomes white or cloudy before your period starts. These shifts are one of the most common reasons people notice their discharge looking “different” and start wondering if something is wrong.
Pregnancy and Hormonal Shifts
During pregnancy, discharge often increases noticeably. Higher estrogen levels boost blood flow to the vagina and uterus, which ramps up fluid production. This pregnancy-related discharge, called leukorrhea, is thin, clear or milky white, and has little to no smell. It serves an extra purpose during pregnancy: helping block infections from reaching the uterus and the developing fetus.
On the other end of the hormonal spectrum, menopause typically causes the opposite change. As estrogen levels drop, the vaginal lining becomes thinner and drier, and discharge decreases. Vaginal dryness is often the first noticeable sign, particularly during sex. Some people going through menopause also notice an unusual yellowish discharge, which can be a sign of vaginal atrophy, a condition where reduced estrogen causes the vaginal tissue to thin and lose moisture.
Signs of a Yeast Infection
Yeast infections are one of the most common reasons discharge suddenly looks and feels different. The telltale sign is thick, white discharge with a lumpy texture, often described as resembling cottage cheese. Unlike an STI or bacterial infection, yeast infections don’t typically produce a strong odor.
What usually makes a yeast infection unmistakable is the combination of symptoms that come with it: intense itching or burning in and around the vagina, redness and swelling of the vulva, small cracks in the skin, burning during urination, and pain during sex. If the discharge change comes with itching as the dominant symptom, a yeast infection is a likely culprit.
Signs of Bacterial Vaginosis
Bacterial vaginosis (BV) happens when the natural balance of bacteria in the vagina tips in favor of certain organisms that don’t normally dominate. The hallmark sign is discharge that’s off-white, gray, or greenish and has a distinct “fishy” smell. That odor often becomes more noticeable after sex.
BV shifts your vaginal pH higher (less acidic), which is part of what allows the imbalance to take hold. Many people with BV don’t have symptoms at all, but when symptoms do appear, the smell is usually the most prominent one. BV is not a sexually transmitted infection, though sexual activity can increase the risk of developing it.
When Discharge Could Signal an STI
Sexually transmitted infections like trichomoniasis, chlamydia, and gonorrhea can all change your discharge. Trichomoniasis, a common parasitic infection, produces discharge that can be clear, white, yellowish, or greenish, often with a fishy smell and a thinner consistency or increased volume. Chlamydia and gonorrhea may cause yellow or greenish discharge, sometimes with pelvic pain or burning during urination.
The tricky part is that STI symptoms can overlap significantly with BV or yeast infections, and some STIs cause no noticeable symptoms at all. A change in discharge color to yellow, green, or gray, especially paired with a new odor, pain, or irritation, warrants testing rather than guessing.
Products That Can Irritate Your Vagina
Sometimes the cause isn’t an infection at all. Your vagina can react to everyday products with increased discharge, burning, or itching. Common irritants include scented soaps, vaginal sprays, douches, spermicides, certain laundry detergents, and fabric softeners. These products can disrupt your vaginal pH or trigger an allergic reaction that mimics an infection.
Douching is one of the most common offenders. It strips away the healthy bacteria that maintain your vagina’s natural balance, which can paradoxically lead to the very odor or discharge changes people are trying to fix. The vagina is self-cleaning, and in most cases, warm water on the external area is all that’s needed.
What Changes Are Worth Getting Checked
The changes that matter most are the ones that break from your personal pattern. A sudden shift in color (gray, green, yellow), a new or strong odor (especially fishy), a cottage-cheese texture with itching, or discharge paired with pelvic pain, fever, or burning during urination are all worth bringing to a healthcare provider.
Getting an accurate diagnosis typically requires more than describing your symptoms. Research from the CDC has found that medical history alone isn’t reliable enough to distinguish between BV, yeast infections, and STIs, since the symptoms overlap so much. A physical exam and lab testing are usually needed to determine the actual cause, which matters because each condition requires a different treatment. If symptoms persist and no clear cause is found, a referral to a specialist is the typical next step.