Ultrasound scanning is safe or not?
There’s no evidence that scans are harmful, if used according to the guidelines. Ultrasound scans have been used in pregnancy for decades.
The person carrying out the scans (sonographer) will follow all the right guidelines to ensure that you and your baby are safe.
Ultrasound sends sound waves through your womb (uterus), which bounce off your baby’s body.
The echoes are turned into an image on a screen, so your sonographer can see your baby’s position and movements. The frequency or length of the sound waves depend on how far along your pregnancy is and the type of scan being carried out.
Studies have found no link between ultrasound and birth weight, childhood cancers, dyslexia, or problems with eyesight or hearing.
You may be offered extra scans to monitor the growth and wellbeing of your baby. This may be because you:
- had complications in a previous pregnancy
- have diabetes
- have high blood pressure
- have a BMI of over 35
- are expecting twins or more
However, it’s not recommended to have an extra scan privately just to obtain souvenir images or a video of your baby.