What is a transvaginal scan (TVS)?

A transvaginal scan is a scan that is done by inserting a probe or transducer into your vagina. The probe is usually covered with a new and sterile condom.

Sound waves emitted from the probe bounce off your baby and are captured by the probe again to produce a magnified image of your baby on a computer screen. This magnified image allows your doctor to determine if all is well with your pregnancy. On an average the scan will take about 15 to 20 minutes.

When and why is a transvaginal scan done?

A TVS is usually done between the sixth and 10th week of your pregnancy though it can be done up to the 12th week. At this stage your baby is often too small and too low in your abdomen to be seen clearly by an abdominal scan. A transvaginal scan allows your doctor to place the probe very close to your baby and so get a very clear picture.