A member asked:

Package insert says estrogen patch is associated with ovarian cancer. are there data to prove causation? if so, at what doses, duration is there risk?

2 doctors weighed in across 2 answers
Dr. Michael Rothman answered

Specializes in Internal Medicine

Estrogen patch: Estrogen causes ovarian cancer, this is an indisbutable fact. How much and for how long is not known. The only thing i can tell you is that the less extra estrogen you put into your system the better. Why are you taking this in the first place? What kind of estrogen is it?

Answered 12/2/2012

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Ovarian cancer: It is a controversial subject but any cause and effect data is very weak.

Answered 12/9/2012

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