Can birth control pills cause breast cancer?

This is an area of controversy and there is no definitive answer for this question.  There have been studies that show no increase risk of breast cancer in birth control pill users and there have been studies that demonstrate the converse.  From a review of all of these studies the conclusion that can be drawn is that birth control pills do not initiate breast cancer in women.  However, in women who have an undetectable breast cancer, the pill may promote a faster growth of this cancer.

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