What are uterine fibroids?
Fibroids are benign growths (not cancer) in the muscular wall of the uterus. These growths can be very tiny or as large as a cantaloupe.
Fibroids are very common. At least 20% of women 35 years of age or older have fibroids. Many women have them without knowing it. Black women are at a higher risk of having fibroids than women in other racial groups.
Once a fibroid is formed, it tends to grow larger until menopause, after which fibroids tend to shrink, due to the effects of estrogen.
Written by familydoctor.org editorial staff