A member asked:

Can a change in thyroid medication cause breast pain?

A doctor has provided 1 answer

It shouldn't: Particularly if you're on the right dose of brand name T4 replacement and your levels are normal and stable. Severe under active thyroid can elevate a hormone known as prolactin, which can cause breast enlargement, but generally not pain. Check w/your doctor.

Answered 1/15/2015

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