Insulin and Fibroids: When Growth Signals Don’t Turn Off

Fibroids are benign growths of uterine smooth muscle. Estrogen often gets the blame, but insulin quietly supports the environment that allows growth to persist.

Chronically elevated insulin:

• Acts as a generalized growth signal

• Increases bioavailable estrogen indirectly

• Reduces the body’s ability to regulate tissue turnover

This doesn’t mean insulin causes fibroids on its own.

It means high insulin keeps the water running in a system already vulnerable to overgrowth.

Lower the pressure, and regulation becomes more possible.