A member asked:

What causes fibroids to grow?

4 doctors weighed in across 2 answers

Estrogen: Fibroids grow when exposed to naturally occuring estrogen. Since estrogen levels "swing" to higher highs and lower lows as a woman gets into her mid 30's and 40's, fibroids tend to grow and cause symptoms at these ages.

Answered 8/1/2019

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Dr. Kevin Carson answered

Specializes in Interventional Radiology

Unknown: No one knows for sure what causes a fibroid to permanently increase in size. In theory a temporary increase in size can be caused by increased blood flow during phases of the patients menstrual cycle.

Answered 6/10/2018

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