The internet helps solve everyday mysteries—like why your underwear might have bleach stains. Surprisingly, it’s not the washing machine, but your body.
According to experts, “it’s your vagina’s natural pH levels” that cause the discoloration. A healthy vagina has a pH between 3.8 and 4.5, making it slightly acidic. This acidity can “bleach fabric,” creating light stains on underwear.
Dr. Vanessa MacKay from the Royal College of Obstetricians and Gynecologists explains that vaginal secretions are part of a healthy process. These secretions help clean the area and support good bacteria that protect the vagina.
In short, these stains are normal and nothing to worry about. As the article notes, it’s “a sign of your body’s natural processes.”