This is a very common problem I encounter in my office sometimes several times a week. It seems that I've seen more of this problem this year than ever before. I've included an interesting link on abnormal uterine bleeding that you should read. I like it because it covers all age groups including premenopausal, perimenopausal and postmenopausal women. I would urge you not to ignore this problem if you have it. I would also suggest to you that until you have an exam and perhaps workup, the source of the vaginal bleeding is not really known. The bleeding may also be originating from vaginal or cervical sources rather than the uterus. See your doctor if abnormal vaginal bleeding is persistent if you are premenopausal or perimenopausal. Any vaginal bleeding in a postmenopausal women not on hormones definitely needs evaluation. Finally, any bleeding while taking hormone replacement therapy at least deserves a phone call to your doctor and perhaps a visit for evaluation. Doc