How much white stuff in underwear is normal?

ok so lately i have been having more "white stuff" in my underwear. i know some is normal but i am not sure how much isn't. i have been sexual active with one person and lately it has become uncomfortable almost painful during sex this happens a few times out of the month. i hate going to the doctors... show more ok so lately i have been having more "white stuff" in my underwear. i know some is normal but i am not sure how much isn't. i have been sexual active with one person and lately it has become uncomfortable almost painful during sex this happens a few times out of the month. i hate going to the doctors so i only will go if it is a something really bad.
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