Are there any risks to the amniocentesis procedure?

Yes. As with any procedure, there are risks. Possible complications include direct or indirect fetal injury, rupture of membranes, infection, & miscarriage. Maternal injury and direct injury to the fetus are especially rare. Timing also affects risk-- amniocentesis done before 15 weeks carries a higher risk of complications. Second trimester amniocentesis carries the lowest risk of fetal loss.