Tissue discolouration? - one is not sure of the source of bleeding.
> You must test your urine immediately for blood and/or infection
> You should have a Gynaecological examination to exclude gynaec pathology - post-menopausal bleeding
> You must check your sugar - it could be full fledged diabetes
in a few months
In summary you have to see a Physician first - have some basic work up like urine, glucose
etc. Furthe steps will depend upon the outcome of this.
Take care / Do NOT delay