You notice faint, bleach-like patches on your underwear and wonder if it’s a laundry mistake—or something more. In most cases, it’s completely normal. Vaginal discharge is naturally acidic, and “Because vaginal secretions are slightly acidic, they can gradually lighten fabric over time,” which reflects the body’s healthy protective balance. Normal discharge usually appears clear to milky white, has a mild scent, and changes throughout the menstrual cycle. These natural fluctuations can leave light stains that are not a cause for concern. Understanding this helps reduce unnecessary worry and doctor visits. However, it’s important to recognize when something isn’t typical. A...
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