CVS
Read about why chorionic villus sampling (CVS) is offered, how it's carried out, and what the benefits and risks are.
Chorionic villus sampling (CVS) is offered to pregnant women at risk of having a baby with a serious genetic disorder. It will diagnose any problems at an early stage.
Chorionic villus sampling (CVS) involves taking a sample of cells from the tissue of the placenta (the 'chorionic villi').
After chorionic villus sampling (CVS) has been carried out, the sample of cells will be sent to a laboratory to be tested.
Before you decide to have chorionic villus sampling (CVS), you'll be told about the risks and possible complications.