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
5.8k views
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
5.8k views
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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