There are risks with amniocentesis, though they are minor. The most common side effects of amniocentesis are: Bleeding Cramping Leaking of amniotic fluid from the puncture site or vagina More serious complications, though rare, do occur in around 1% of patients: Preterm labor Infection Miscarriage It should be noted that the incidence of miscarriage from amniocentesis is only slightly higher than the general chance of miscarriage. Genetic testing can be extremely helpful in preparing a family for unique conditions and corresponding treatments their child might need. Speak with your doctor to determine any potential birth outcomes as a result of genetic testing.