The internet is an incredibly useful tool, offering a wealth of information on nearly any topic. It allows us to solve mysteries and debunk myths that once remained unsolved, from life hacks to health questions.

One common question women have asked online is why their underwear sometimes looks like it’s been stained with bleach. As it turns out, these spots aren’t from bleach, but rather due to natural vaginal secretions. Dr. Vanessa MacKay explains that the vagina has a self-cleaning mechanism with beneficial bacteria that helps maintain its natural pH, which is slightly acidic. Clear or white vaginal discharge is normal and healthy, but imbalances can lead to infections.