How to Prepare for Your Pregnancy Scan: Complete Guide
Whether it's your first dating scan or a later growth check, knowing what to expect can take a lot of the anxiety out of the appointment. Preparation for most pregnancy scans is refreshingly simple — there's rarely anything special you need to do beforehand, but a few small things can make the appointment run more smoothly.
What to wear and bring
Comfort and practicality make the biggest difference:
- Wear loose, comfortable clothing, ideally a two-piece outfit rather than a dress or jumpsuit, since you'll need to expose your lower belly for the gel and probe
- Bring your maternity notes (your handheld records), as the sonographer will need to check and update these
- Bring a support person if you'd like one — most hospitals allow one person, though it's worth checking your specific hospital's policy in advance, as some units have restrictions
- Bring a list of any questions you want to ask, since it's easy to forget them once you're in the room
- Bring a small amount of cash or a card if you'd like scan photos, as these often cost a few pounds and aren't always included as standard
Do you need a full bladder?
This depends on the type of scan and how far along you are:
- For most scans from around 12 weeks onwards, an abdominal scan is used and a full bladder generally isn't required
- For very early scans (often before 7-8 weeks), a transvaginal scan may be used instead, which doesn't need bladder preparation
- Some early abdominal scans work better with a reasonably full bladder, as it helps push the womb into a clearer position for imaging
Because policies vary between hospitals, always follow the specific instructions given on your appointment letter or by your midwife rather than assuming.
What happens during the scan
Most scans follow a similar pattern regardless of what stage of pregnancy you're at:
- Gel is applied to your belly (or, for a transvaginal scan, a covered probe is used internally), which can feel a little cold
- The sonographer moves the probe over your belly, looking at the screen to check your baby's development and take measurements
- The appointment typically takes 15-30 minutes, though this can vary depending on your baby's position and what's being checked
- You'll usually be able to see your baby on the screen during the scan, and the sonographer will often point out what you're looking at
After the scan
You'll normally be given your results straight away, along with an explanation of the measurements taken. Don't be afraid to ask questions in the moment — sonographers are used to explaining things in plain language, and it's much easier to ask while you're still there than to try to remember everything later.
Frequently Asked Questions
Do I need a full bladder for my pregnancy scan?
For most 12-week dating scans, no — a full bladder usually isn't required for an abdominal scan at this stage. Some earlier scans, particularly before 8 weeks, may use a transvaginal approach or ask for a fuller bladder to improve the image. Always check your specific appointment letter or ask your midwife beforehand.
What should I bring to my pregnancy scan?
Bring your maternity notes, a list of any questions, and a support person if the hospital allows it. Wear loose, comfortable clothing that makes it easy to expose your lower belly, and bring a little cash or a card in case you want to purchase scan photos afterwards.
How long does a pregnancy scan take?
Most routine scans take around 15-30 minutes, though this can vary depending on your baby's position, how easy it is to get clear measurements, and what specifically is being checked. Some appointments run a little longer if the sonographer needs extra time or a second look.
This article is for informational purposes only and does not constitute medical advice.
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