Fibroids in Pregnancy

Easy-to-read information for patients

1. What are fibroids?

Fibroids are growths made of muscle in the wall of the uterus. The uterus is also called the womb. Fibroids are not cancer. Many women have fibroids and may not have any symptoms.

2. What happens during pregnancy?

Most women with fibroids have a healthy pregnancy and a healthy baby. A fibroid may stay the same size, grow, or get smaller. Sometimes a fibroid can cause pain.

3. How can fibroids affect pregnancy?

Pelvic pain or pressure
Bleeding early in pregnancy
The baby may lie in a different position
A higher chance of early birth or cesarean birth

Most of the time, your care team will use ultrasound to check the fibroids and your baby.

4. When should I call my doctor?

Strong or lasting belly pain
Vaginal bleeding
Fever
Contractions or leaking fluid

5. What is the treatment?

Treatment depends on your symptoms. Your doctor may suggest rest, fluids, and pain medicine that is safe during pregnancy. Surgery is rarely needed during pregnancy.

Medical illustration of a pregnant uterus showing the baby, placenta, cervix, an intramural fibroid in the uterine wall, and a subserosal fibroid on the outside of the uterus — Fibroids may grow within the uterine wall or bulge from the outside of the uterus. Their size and location can affect pregnancy care.

6. Key point

Most women with fibroids have a good pregnancy outcome. Your care team will watch you and your baby carefully.

Get urgent care if you have severe pain, heavy bleeding, fainting, trouble breathing, or any emergency symptoms.