There are countless reasons why the internet, with its vast amount of knowledge available, is a beneficial tool.

Even if there seems to be no end to the benefits it offers us daily, its ability to be a never-ending source of shared knowledge may be what makes it the greatest invention of the last few centuries.

If you know where to seek, you can find information on any issue and can always get the solution you’re looking for. With a few mouse clicks and keystrokes on a computer, mysteries that would have stayed unsolved for decades can suddenly be resolved.

In the same way that life hacks and useful advice have become common knowledge over time after once being the domain of the elite, many old myths have been disproved online.

For instance, have you ever wondered why your underwear sometimes appears to have bleach stains on it? If so, you’re not alone, it seems, as ladies looking for solutions have asked the same question online.

And they discovered answers. It turns out that, contrary to what some have believed, those coloring patches have nothing to do with your computer.

No, according to research, the vagina’s natural pH levels are what really produce these “bleach” spots.

Let us emphasize once more that there is no reason for concern regarding this before moving forward. Instead, it’s a good indicator if you find the previously stated spots on your underpants. As is common knowledge, a liquid or substance’s pH level indicates how acidic or alkaline it is. However, one useful tweet states:

Now that everyone knows, lighter areas on a woman’s panties or underwear are quite natural because the vagina has an acidic pH range of 3.8–4.5. So, I guess it’s time to give up on the idea that bad hygiene is to blame. Actually, the ability to bleach the fabric indicates a healthy vagina.

According to Dr. Vanessa MacKay of the Royal College of Obstetricians and Gynecologists, the vagina has a natural secretory system that allows it to clean itself. It is protected by the good bacteria that it contains.

According to the National Institutes of Health, the pH of the vagina typically fluctuates from 3.8 to 5.0, which means that it is rather acidic compared to the normally neutral pH level of 7.

Dr. MacKay continues, “Disturbing the natural balance can lead to infections, but it’s perfectly normal and healthy for women to have clear or white discharge from their vagina.”

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