I am currently taking birth control pills just to regulate my monthly cycles, already have tubes tied (11 yrs ago). On June 13th I went in for a colonoscopy to see if I had a leakage as my iron is low (around 10.4) and the very next day I started having vaginal bleeding and have been bleeding since (not a lot but enough I have to wear panty liners). I am one that has had a abnormal cycle since I was 16 and the last few years once would have maybe 1, so dr placed me on pills so I could take the fake ones once every three months. Should I be concerned with this bleeding for this amount of time? Any ideas of what could be causing it?