There are several different growths that can occur inside the uterus. One of the types is uterine fibroids, a benign (not cancerous) growth that is common among women; occurring in as high as 50-75% of all women. Many women who have uterine fibroids are not aware of them because they can remain small and asymptomatic. However, some can cause problems because of their size, location, and number. This page covers the basics about uterine fibroids and what to expect if you have them.