Some people are just finding out why they get bleach patches on their underwear

It turns out that the mystery behind the bleach-like stains on your underwear can be explained by the natural pH levels of the vagina.

A common cause for these lighter patches is the acidic environment within the vagina, with a pH range between 3.8 and 4.5.

This acidity can sometimes cause fabric to bleach, leaving lighter areas on underwear. While it might initially seem alarming, this phenomenon is actually completely normal and a sign of a healthy vagina.

Experts like Dr. Vanessa MacKay from the Royal College of Obstetricians and Gynecologists confirm that a healthy vaginal pH can interact with fabrics in this way.

It’s important to note that the pH can fluctuate due to factors such as menstrual cycles, infections, or lifestyle changes, but in general, it’s a natural process. Furthermore, this doesn’t reflect poor hygiene. Many women have shared their experiences online, reassuring others that this is a common occurrence and not a cause for concern.

Understanding this biological process helps demystify what might have been a source of confusion or worry for many people. While some may never experience this, for others, it’s just another part of normal bodily function. For more information on vaginal health and the causes behind these “bleach” marks, you can read further at and .