On the third day, however, when I wiped after urination, I was upset to see green on
the toilet paper
. It was almost clear green. The next day, the green was gone. The following day, the green returned as a yellowish-green. Is this a serious matter? I have never had an std, or any kind of feminine problems, well, except in menopause during which time I had unusually heavy bleeding. Otherwise, I've never had bad cramping, and could time my periods almost to the minute.