Vaginal discharge stains can be a bit of a nightmare. How do you get them out? Are they normal? And have you ever wondered why bleach-like marks show up in your underwear? We’re here to answer all your questions on vaginal discharge—and how to deal with those stubborn stains once and for all.
What is vaginal discharge?
Let’s start by setting the record straight: vaginal discharge is totally normal. In fact, it’s a key part of keeping your vagina healthy. That said, we get it—you’d rather not see it bleach your favourite knickers.
So what exactly is it? Vaginal discharge is a fluid or mucus that keeps the vagina clean, lubricated, and protected from infection. The amount you produce can vary from person to person—and even cycle to cycle. Some people experience a noticeable amount, while others barely see a trace.
Discharge can change depending on factors like:
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Your menstrual cycle
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Hormone fluctuations
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Stress
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Pregnancy
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Infection
Typically, healthy discharge is clear or white with a mild scent. If something smells strong or looks unusual, it’s always a good idea to check in with a healthcare professional. You can read more about spotting changes in discharge here.
Why does vaginal discharge stain my underwear?
Ah yes, the million-pound question: why does it leave bleach-like stains on your pants?
The answer lies in your vagina’s pH. Your vagina contains good bacteria called lactobacilli, which help maintain an acidic environment that keeps bad bacteria at bay. This acidity is healthy and protective—but when the discharge oxidises in the air and reacts with fabric dyes, it can leave a bleached patch on your underwear. Annoying? Yes. A sign of poor health? Not at all.
In fact, if your discharge bleaches your pants, it’s often a sign that your vaginal pH is balanced just as it should be.
How to remove vaginal discharge stains
Now for the good stuff: how to actually get rid of those stains.
If the stain is fresh:
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Rinse the fabric as soon as possible in cold water. The sooner you act, the better your chances of lifting it.
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Gently rub the stain with mild detergent or bicarbonate of soda paste (bicarb + a splash of water).
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Let it sit for 15–30 minutes, then wash as usual.
For older stains:
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Soak the underwear in cool water and white vinegar (1 part vinegar to 2 parts water) for about 30 minutes.
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Then give it a gentle scrub and pop it in the wash.
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Avoid hot water, as this can “set” the stain.
How to prevent vaginal discharge stains
While discharge is completely normal, you don’t necessarily want it leaving its mark on your favourite lingerie. Here’s how to reduce staining:
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Wear panty liners on heavier discharge days—they provide a barrier and are easy to swap out.
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Choose darker-coloured underwear or those made from natural fabrics like organic cotton.
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Keep a few “everyday” pairs of underwear on rotation specifically for discharge days.
Final thoughts
Vaginal discharge is a sign that your body is doing exactly what it’s supposed to. A few bleached undies along the way? Annoying, yes—but also totally fixable. Now you know how to remove those stains and even prevent them, you can feel a little more in control of what’s going on down there.
Blog disclaimer
Our blog is intended to share information and ideas around periods, health, and sustainability. While we do our best to keep content accurate and up to date, things can change over time. The information here is not intended as medical advice — for any health-related concerns, please consult a qualified healthcare professional. For more information on our claims, please see our Claims Page, and for the most up-to-date product information, please visit our Product Pages.
