What to expect after amniocentesis

Amniocentesis uses a needle through the abdomen to collect a small sample of amniotic fluid. The puncture site may feel tender, and brief period-like cramps or light spotting may settle with rest. Your clinician will explain when results are expected and whether the sample is being tested for a specific chromosome or genetic condition.

A result may be reassuring, may identify a finding, or may need further explanation. The test does not answer every pregnancy question, so ask what the particular result can and cannot show.

Follow the clinic's instructions about rest, activity and returning to work or exercise. Keep the dressing or puncture area clean according to the advice given, drink normally, and use only pain relief that your maternity team has approved. Note any cramps, bleeding or fluid and keep the contact number for the testing unit available.

Contact your maternity unit promptly for fluid leaking from the vagina, bleeding that is more than light spotting, persistent or increasing abdominal pain, fever, chills, feeling unwell, or contractions. Seek emergency help for severe pain, heavy bleeding, fainting or difficulty breathing. Mention that you recently had amniocentesis.

Ask when each result is expected, who will explain it, what activities to avoid, and which symptoms require urgent review. You can also ask how amniocentesis compares with Chorionic Villus Sampling or NIPT for the question you want answered.