brownish stain on underwear

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  So this is my first time posting on here but I'm 14 and haven't
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  Grey/brownish stains on toddler clothes : r/laundry
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  Why does the inside of my underwear turn brown even though I do
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  What are the potential causes and health implications of
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  So this is my first time posting on here but I'm 14 and haven't started my period. I have gotten discharge normally but today I saw this odd stain in my underwear
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  What are the potential causes and health implications of experiencing daily brown stains, wetness, and odor in female underwear? - Poe
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  Brown Period Blood? A Doctor Tells Us Why Our Blood Is This