Prenatal diagnosis

View Stages of Pregnancy Slideshow Pictures

Medical Definition of Prenatal diagnosis

Prenatal diagnosis: Diagnosis before birth. Methods for prenatal diagnosis include ultrasound of the uterus, placenta, and/or developing fetus; chorionic villus sampling (CVS) to obtain tissue for chromosome or biochemical analysis; and amniocentesis to obtain amniotic fluid for the analysis of chromosomes, enzymes, or DNA. A growing number of birth defects and diseases can be diagnosed prenatally and in some cases treated before birth. Also known as antenatal diagnosis.


Quick GuideStages of Pregnancy: 1st, 2nd, 3rd Trimester Images

Stages of Pregnancy: 1st, 2nd, 3rd Trimester Images

Subscribe to MedicineNet's Pregnancy & Newborns Newsletter

By clicking Submit, I agree to the MedicineNet's Terms & Conditions & Privacy Policy and understand that I may opt out of MedicineNet's subscriptions at any time.

Reviewed on 6/9/2016

Health Solutions From Our Sponsors