Are you still on Tamoxifen? If you are, did you miss any dose recently?
What other medicines are you on?
Arimidex is an anti-estrogen, which means that it decreases the level of estrogen in the body. This low estrogen level can cause vaginal dryness severe enough to cause bleeding.
If your bleeding is due to the Arimidex, it should clear up once you go off the pills.
But you do need to consult your gynecologist as early as possible. You need an ultrasound to check out your ovaries and uterus, especially the endometrium (inner uterine lining) as early as possible.
If you can reach your own gynecologist within this week, you can wait till you meet her/him.
If you cannot reach your gynecologist within this week, please consult another gynec locally.
I hope this helps.
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