Check firstCheck with your care teamTest or decision

Chorionic villus sampling (CVS)

CVS is a diagnostic procedure that samples placental tissue; the exact question, timing, benefits, limitations and procedure risks need specialist discussion.

Direct guidance

What to know or do

Ask how the result differs from screening, what it will and will not test, and what symptoms after the procedure require urgent contact.

What changes the answer

  • Whether this is screening, diagnosis, monitoring, treatment or birth planning
  • Pregnancy week, previous results and what the result could change
  • Benefits, limits, alternatives, follow-up and the time available to decide

Check with your care team

When to get individual help

Check the exact item or situation with a doctor, midwife, pharmacist or relevant clinician; the name of a broad category is not enough for a personal decision.