A molar pregnancy should be treated right away. This will make sure that all of the tissue is removed. This tissue can cause serious problems in some women.
About 1 out of 1,500 women with early pregnancy symptoms has a molar pregnancy.1 This means that 1,499 women out of 1,500 don't have this problem.
Molar pregnancy is thought to be caused by a problem with the genetic information of an egg or sperm. There are two types of molar pregnancy: complete and partial.
Sometimes a pregnancy that seems to be twins is found to be one fetus and one molar pregnancy. But this is very rare.
Things that may increase your risk of having a molar pregnancy include:
A molar pregnancy causes the same early symptoms that a normal pregnancy does, such as a missed period or morning sickness. But a molar pregnancy usually causes other symptoms too. These may include:
Most of these symptoms can also occur with a normal pregnancy, a multiple pregnancy, or a miscarriage.
Your doctor can confirm a molar pregnancy with:
A molar pregnancy can cause heavy bleeding from the uterus.
Some molar pregnancies lead to gestational trophoblastic disease. Sometimes this disease keeps growing after molar pregnancy is removed.
In a few cases, trophoblastic disease turns into cancer. Fortunately, almost all women who get this cancer are cured with treatment.1
In rare cases, the abnormal tissue can spread to other parts of the body.
When you have a molar pregnancy, you need treatment right away to remove all of the growth from your uterus. The growth is removed with a procedure called vacuum aspiration.
If you are done having children, you may decide to have your uterus removed (hysterectomy) instead of having a vacuum aspiration to treat your molar pregnancy.
After treatment, you will have regular blood tests to look for signs of trophoblastic disease. These blood tests will be done over the next 6 to 12 months. If you still have your uterus, you will need to use birth control for the next 6 to 12 months so you don't get pregnant. It is very important to see your doctor for all follow-up visits.
If you do get trophoblastic disease, there's a small chance that it will turn into cancer. But your doctor will likely find it early so it can be cured with chemotherapy. In the rare case when the cancer has had time to spread to other parts of the body, more chemotherapy is needed, sometimes combined with radiation treatment.
Trophoblastic disease doesn't keep most women from becoming pregnant later.2
After a molar pregnancy, it’s normal to feel very sad and to worry about cancer. It may help to find a local support group or talk to your friends, a counselor, or a religious adviser.
Learning about molar pregnancy:
|American Cancer Society (ACS)|
The American Cancer Society (ACS) conducts educational programs and offers many services to people with cancer and to their families. Staff at the toll-free number have information about services and activities in local areas and can provide referrals to local ACS divisions.
|American Congress of Obstetricians and Gynecologists (ACOG)|
|409 12th Street SW|
|P.O. Box 70620|
|Washington, DC 20024-9998|
American Congress of Obstetricians and Gynecologists (ACOG) is a nonprofit organization of professionals who provide health care for women, including teens. The ACOG Resource Center publishes manuals and patient education materials. The Web publications section of the site has patient education pamphlets on many women's health topics, including reproductive health, breast-feeding, violence, and quitting smoking.
|National Cancer Institute (NCI)|
|6116 Executive Boulevard|
|Bethesda, MD 20892-8322|
|Web Address:||www.cancer.gov (or https://livehelp.cancer.gov/app/chat/chat_launch for live help online)|
The National Cancer Institute (NCI) is a U.S. government agency that provides up-to-date information about the prevention, detection, and treatment of cancer. NCI also offers supportive care to people who have cancer and to their families. NCI information is also available to doctors, nurses, and other health professionals. NCI provides the latest information about clinical trials. The Cancer Information Service, a service of NCI, has trained staff members available to answer questions and send free publications. Spanish-speaking staff members are also available.
- American College of Obstetricians and Gynecologists (2004, reaffirmed 2008). Diagnosis and treatment of gestational trophoblastic disease. ACOG Practice Bulletin No. 53. Obstetrics and Gynecology, 103(6): 1365–1377.
- Berkowitz RS, Goldstein DP (2007). Gestational trophoblastic disease. In JS Berek, ed., Berek and Novak's Gynecology, 14th ed., pp. 1581–1603. Philadelphia: Lippincott Williams and Wilkins.
- Burtness B (2004). Neoplastic diseases. In G Burrow et al., eds., Medical Complications During Pregnancy, 6th ed., pp. 479–504. Philadelphia: Elsevier.
Other Works Consulted
- Aghajanian P (2007). Gestational trophoblastic diseases. In AH DeCherney et al., eds., Current Diagnosis and Treatment Obstetrics and Gynecology, 10th ed., pp. 885–895. New York: McGraw-Hill.
- Li AJ (2008). Gestational trophoblastic neoplasms. In RS Gibbs et al., eds. Danforths Obstetrics and Gynecology, 10th ed., pp 1073-1085. Philadelphia: Lippincott Williams and Wilkins.
|Primary Medical Reviewer||Sarah Marshall, MD - Family Medicine|
|Specialist Medical Reviewer||Deborah A. Penava, BA, MD, FRCSC, MPH - Obstetrics and Gynecology|
|Last Revised||October 11, 2011|
Last Revised: October 11, 2011
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