The Cervix and Reassurance Scan is performed if your doctor has any concern about the state of your cervix. Your cervix should be long and closed until you go into labour so it will be checked at every obstetric ultrasound appointment you have. If you have a history of pre-term labour or short cervix, or had an Anomaly Scan that demonstrated a low-lying placenta, they will need to be followed up at around 28-32 weeks.
During the scan, the baby’s heartbeat, anatomy, movement, size, various blood vessels and its amniotic fluid are checked. The sonographer will then examine your anatomy – in particular, your uterus, cervix and placenta. More often than not, the best way to assess the distance between the placenta and cervix, as well as the length of your cervix, is with an internal ultrasound.
Another reason you may need a cervical scan is if you experience a loss of fluid via the vagina. This may be due to a premature rupture of membranes (PROM) and needs to be investigated. In this situation, an internal ultrasound is not appropriate but the sonographer may perform a translabial ultrasound to get a closer look at your cervix. A translabial ultrasound involves scanning through the labia to see up the vagina and to the cervix. It is safe for the baby and not painful for the patient.
If the baby is in a good position we may be able to obtain a few 3D images. Successful 3D/4D imaging is very dependent on the position of the baby and it must have amniotic fluid in front of the region being scanned in order to obtain a clear image. This can become quite challenging as the pregnancy progresses. The baby is often quite squashed in there during the third trimester and may have its face up against the placenta or have its hands in front of its face. The amazing images you see online or in advertisements may not be possible to acquire for you. However, the sonographer will optimise your images as much as possible. For more information on 3D/4D ultrasound,click here.
The sonographer will discuss the ultrasound findings with you and tell you if everything appears normal or if there are any concerning features. You will receive a small printed image of your baby and all of your images as jpg files on a CD. An official report will be emailed to you, and your referring doctor if applicable, later in the day.
This ultrasound will generally take 20-30 minutes.
Meet our experts
- Qualifications: BAppSc (Exercise and Sport Science), GDMU
- Location(s): Aberdeen - ROC Private Clinic
- Clinical Interest(s): Diagnostic Medical Ultrasound: General, Small Parts, Musculoskeletal, Obstetrics, Gynaecology, Vascular.
Ingrid Yuile is an Australian Accredited Medical Sonographer and has moved all the way from her hometown, Sydney, to join our team in Aberdeen. With nearly 10 years of experience across all disciplines, Ingrid's skill as a general sonographer is a fantastic addition to our medical practice.