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Preterm Labor
 
What is preterm labor?
If you have regular, painful uterine contractions and changes in your cervix between your 20th and 37th weeks of pregnancy, you are having preterm labor. It is also called premature labor.

Preterm labor can lead to an early, premature delivery of your baby. A baby that is born early may have some health problems. A premature baby may need special treatment in an intensive care nursery. Even with intensive treatment, the premature baby may die or may have chronic lung disease or other serious problems.

Preterm labor can sometimes be controlled with bed rest or medicine so that the baby is born closer to your due date. Follow all of your health care provider's instructions very carefully so that your baby can be born in the best condition possible.

How does it occur?
Preterm labor seldom has a clear cause. However, you have a greater risk of preterm labor if:
  • You do not see your health care provider regularly while you are pregnant.
  • You have problems during your pregnancy, such as high blood pressure, too much or too little fluid in the sac surrounding the baby, or early separation of the placenta from the wall of the uterus.
  • You had a previous preterm labor or delivery.
  • You are pregnant with more than 1 baby.
  • You have an abnormally shaped uterus or fibroids inside your uterus.
  • You are less than 18 years old.
  • You smoke or use drugs during your pregnancy.

What are the symptoms?
Preterm labor contractions may not feel like normal labor contractions. They may be weaker. Many times, preterm labor contractions may feel the same as movements of the baby or the normal aches and pains of pregnancy. It is important to know the signs and symptoms of preterm labor, how to feel the uterus for contractions, and when to call your health care provider about contractions.

Some of the signs and symptoms of preterm labor are:
  • an increase or change in vaginal discharge; for example, a slow, continuous leaking of fluid from the vagina
  • any rhythmic pelvic pressure
  • cramps like you have during your period, which come and go
  • abdominal cramps with or without diarrhea
  • backache with a tightening of the abdomen.

If you are at risk for preterm labor and you have any unusual feelings or pains, call your health care provider.

How is it diagnosed?
Your health care provider reviews your symptoms and does a pelvic exam to see how much your cervix has thinned or opened. Your provider may use a uterine monitor to measure and time uterine contractions.

How is it treated?
Your health care provider may or may not try to stop the labor and early delivery of your baby. The decision is based on how long you have been pregnant, your health and the baby's health, the availability of an intensive care nursery, changes in your cervix, and whether or not your bag of water has ruptured.

The longer your pregnancy continues, the better the chances are that the baby will live and be healthy. It also usually reduces the amount of time your baby will spend in the intensive care nursery.

Treatment for stopping preterm labor may include:
  • staying in the hospital
  • continuous uterine monitoring
  • bed rest (lying on the left side is best for uterine relaxation and blood flow)
  • amniocentesis to look for infection or to see if the baby's lungs are mature
  • treatment for infection if lab tests of blood, urine, or cells from the cervix show infection
  • ultrasound scan to check the condition of the placenta, check the baby's age, look for any birth defects, see the position of the baby in your uterus, and measure the cervix and the amount of fluid in the amniotic sac
  • cervical cerclage (surgically closing the cervix) if your cervix is opening too early.

Sometimes medicines may be given to stop preterm labor. They can be given orally or into a vein (IV). Usually one medicine is started with an IV. Later you may switch to pills. Your health care provider will probably not use a drug to stop premature birth if:
  • You have a lot of vaginal bleeding.
  • You have very high blood pressure.
  • You have an infection in your uterus.
  • The cervix is very open.
  • You have a baby with fatal birth defects or who has died already.
  • There are problems with the placenta.
  • You have any condition in which the pregnancy should not go on.

If it looks like your preterm labor may become full labor and delivery, your provider may give you medicine to help the baby's lungs mature before birth. The medicine will help your baby breathe better after delivery. The medicine is usually given only if you are between the 24th and 34th weeks of pregnancy and you are going into full labor.

How can I take care of myself and help prevent preterm
labor?

If you are at increased risk for preterm labor:
  • Visit your health care provider as soon as you think you are pregnant.
  • Visit your health care provider according to the schedule you are given and follow all of your provider's advice.
  • Discuss with your health care provider possible effects of your work schedule.
  • Rest as much as possible.
  • Don't skip meals. Eat healthy meals and snacks every day.
  • Learn how to recognize contractions by feeling your uterus with your hand on your abdomen.
  • Get treatment for any kidney, bladder, or vaginal infections.
  • Learn about other signs and symptoms of premature labor. Call your health care provider if you have any signs or symptoms of preterm labor or any unusual feelings.
  • Avoid stimulation of your nipples, which can cause contractions.
  • Avoid intercourse if it causes contractions.
  • Do not smoke or use illegal drugs.

If you are being treated for preterm labor, carefully follow all of your health care provider's instructions.




  Disclaimer: This content is reviewed periodically and is subject to change as new health information becomes available. The information provided is intended to be informative and educational and is not a replacement for professional medical evaluation, advice, diagnosis or treatment by a healthcare professional.

  HIA File WOM5309F.HTM Release 9.0/2006. Copyright © 2006 McKesson Corporation and/or one of its subdiaries. All Rights Reserved.


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