Doctors explain that healthy vaginal discharge is mildly acidic, and that acidity can gradually lighten certain underwear materials over time. Because of this, the marks are not usually a sign of poor hygiene or something to be ashamed of.
For many women, learning this can be reassuring. What may seem embarrassing at first is often just a normal sign that the body is functioning the way it should, especially when there are no other unusual symptoms like strong odor, itching, or discomfort.
The bigger lesson is that understanding the body reduces fear and shame. Instead of seeing these changes as something strange, women can view them as part of normal body processes and seek medical advice only if other symptoms suggest a real problem.
