Your uterus is lined with smooth muscle cells that support pregnancy and labor. Sometimes these cells can grow out of control, causing you to develop a mass on the wall of your uterus called a uterine fibroid.
What are uterine fibroids?
Uterine fibroids, sometimes called leiomyomas, are growths (tumors) made up of the muscle and connective tissue from the wall of the uterus. These fibroids are almost always benign, meaning they're not cancerous. Uterine fibroids can be so small they can't be detected or can grow as large as a grapefruit (or larger). Doctors most often find fibroids during a normal physical exam when they press on the uterus.
Some women may never have symptoms of uterine fibroids. Others, however, may have severe uterine fibroid symptoms that impact their daily lives, including:
- Long or heavy periods
- Bleeding between periods
- Pelvic or lower back pain
- Frequent urination
- Pain during sex