BACTERIAL VAGINOSIS....question?

I was wondering how you get it... If you get it how do they treat it Like what do the doctors do.. Do they check down in your vagina can they tell if you have had sex or no And is it like a blood stream thing does it run through your blood And if u have it can you donate blood and then go get it checked Out....... show more I was wondering how you get it... If you get it how do they treat it
Like what do the doctors do.. Do they check down in your vagina can they tell if you have had sex or no
And is it like a blood stream thing does it run through your blood
And if u have it can you donate blood and then go get it checked
Out.... I'm just curious

PLEASE ANSWER ALL my questions
Thanks
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