Uterine Fibroid Tumor Pregnancy

Fibroid tumors are generally non-cancerous. They occur most often in the uterus of women who are in their 30s and 40s.

Fibroid tumors are made up of solid fibrous tissue. Most of them grow very slowly and don’t have a lot of symptoms. However, they seem to be related to the production of the estrogen hormone. Fibroid tumors can be a concern during because they can grow larger due to the increase in hormones caused by the pregnancy.

Types of Fibroid Tumors

Fibroid tumors come in many different forms. These tumors can be the size of a pea, or grow to be the size of a grapefruit. Some are hard and feel like a stone while other fibroid tumors are rubbery and soft.

Most fibroid tumors tend to fall into one of these categories:

  • interligamentous — a fibroid tumor that grows between ligaments and are fairly difficult to remove
  • intramural — a round tumor that grows in the wall of the uterus and can enlarge the uterus as it grows
  • parasitic — a fibroid tumor that grows on another organ
  • pendunculated — a tumor that grows on a stalk, and can become twisted as it grows larger, causing pain
  • submucous — tumors that grow below the lining of the uterus
  • subserous — a tumor that grows on the outside of the uterus.

Complications During Pregnancy from Fibroid Tumors

Most women develop fibroid tumors before they get pregnant, and they’re often diagnosed when they get their first pregnancy ultrasound. For most women, fibroid tumors do not cause problems during pregnancy.

Fibroid tumors do not usually harm your developing baby unless you have a lot of bleeding. In addition, having fibroid tumors can slightly increase your risk of miscarriage and premature birth.

Other complications include the baby being in a position for delivery that is not normal, having labor that stalls or having the tumor block the birth canal during delivery. For the most part, these complications due to the presence of fibroid tumors are fairly rare.

Symptoms of Fibroid Tumors During Pregnancy

The most common symptoms of fibroid tumors during pregnancy include:

  • abdominal pain
  • constipation
  • frequent urination
  • heavy vaginal bleeding
  • pelvic pressure.

If you notice any of these symptoms, contact your doctor.

Getting Pregnant With Fibroid Tumors

Fifty to 80 percent of all women experience some type of fibroid tumor during their life. If you’re considering becoming pregnant and you know that you have one or more fibroid tumors, talk with your doctor.

Your doctor can do an ultrasound to see where the tumors are and decide whether they’ll cause any problems during your pregnancy. A fibroid tumor might have to be removed through surgery before getting pregnant if your doctor feels that it is a problem.

Another concern is that a fibroid tumor can cause infertility if it’s located in the fallopian tube. Fibroids are thought to be the cause of infertility in about three to twelve percent of cases.

Many times, your doctor will simply tell you about the symptoms of fibroid tumors during pregnancy so you’ll know what to look out for. Your doctor will probably monitor your fibroid tumor closely to prevent any complications. He can prescribe treatment for the symptoms of fibroid tumors during pregnancy such as ice packs, bed rest and, in some cases, medication.

Fibroid tumors during pregnancy are a more common occurrence than people might think. However, most women have no complications from fibroid tumors and have a healthy and trouble-free pregnancy.


Bilich, Karen. Fibroids During Pregnancy. (nd). Retreived July 1, 2007 from http://health.discovery.com/centers/pregnancy/americanbaby/fibroids.html.

Cornforth, Tracee. (2003). Fibroid Tumors. Retrieved July 1, 2007 from http://womenshealth.about.com/cs/fibroidtumors/a/fibroidtumors.htm.

Institute For Female Alternative Medicine. (2004). Fibroid Tumors. Retrieved July 1, 2007 from http://www.alternativesurgery.com/education/fibroid.php.