Amniocentesis

Should you have amniocentesis?

You may want to think about having an amniocentesis if:

• You’re age 35 or older.

• There’s a history of inherited (genetic) problems in your family.

• You have another child with a genetic problem.

• An ultrasound or blood test has shown that the baby may have a birth defect or other health problem.

How is amniocentesis done?

• The baby is located with ultrasound (sound waves that make an image on a screen).

• The belly is cleaned with a special soap or solution.

• A thin needle is put into your uterus, through your belly. The doctor keeps the needle from touching the baby by watching the screen.

• The needle is used to remove a small amount of amniotic fluid from your uterus. Your body will make more fluid to replace what was taken.

• You can go home right after the test. But you may need to take it easy for a day or so.

What are the possible risks?

This test is considered safe. But there are some possible risks. These include:

• Cramping, spotting, or leaking amniotic fluid.

• Infection in the uterus.

• Pregnancy loss (miscarriage). This is rare.

• The needle coming into contact with the baby. This is rare.

When to contact your doctor

Contact your doctor right away if you have:

• Severe pain or cramping.

• Vaginal bleeding (spotting).

• Fever or chills.

• Fluid leaking from your vagina.

Getting test results

You’ll get your test results in about 2 weeks. Most results are normal. Even if yours aren’t, it doesn’t always mean there’s a problem. But this will depend on what your doctor is looking for with amniocentesis. You and your doctor can talk about other tests or special care you may want.