"When is your ultrasound?" This is a question many expectant moms receive when their bellies start to show. Almost like a rite of passage, the ultrasound is almost a given in the modern pregnancy, offering moms-to-be a peek inside the womb and a chance to learn the gender of their growing baby, if they want to know ahead of time. Yet, many moms have no idea how this common test works, or why they should consider having one performed.
How Ultrasounds Work
Ultrasounds send sound waves into the body to gather images of the growing baby. The sound waves bounce off of the baby and back to the transducer, or probe, where they are translated into an image on the computer screen. The technician uses a specially designed keyboard to capture the images on the CPU, and the images display on the computer screen for the technician and the mom to see. A gel between the transducer and the mom's belly helps transmit the sound waves.