OK...so, here it is: I have been having white discharge for some time now. I am sexually active so when I thought it could have been an STD I went and got checked out several times and they said I wasn't infected with an STD. I get it more times when I wear thongs and I just about wear thongs daily. What could this be?? I haven't been able to get answers. My boyfriend saw it and he said that some women get white discharge at the commence of sex. Is this true?