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Pelvic ultrasound
Category: Imaging & Scans · All imaging & scans
What it is
A pelvic ultrasound uses sound waves to picture the womb, ovaries and surrounding structures. It may be done through the tummy (transabdominal), through the vagina (transvaginal), or both, depending on what needs to be seen.
Why it is done
It is used to investigate pelvic pain, irregular or heavy periods, fertility questions and lumps felt on examination, and to check the position of a coil (IUD).
How to prepare
For a transabdominal scan you will usually be asked to arrive with a full bladder, which helps provide a clear window to the pelvic organs. A transvaginal scan is usually done with an empty bladder. Your letter will explain which applies.
What happens during the procedure
Gel is applied and the probe is moved over the lower tummy. For a transvaginal scan, a slim covered probe is gently inserted a short way into the vagina, which most people find more comfortable than a smear test. The scan usually takes 15 to 30 minutes and a chaperone is always available.
Afterwards — recovery & results
You can return to normal activities immediately. The report is sent to your doctor, usually within a few days.
Risks & considerations
Ultrasound uses no radiation and has no known harmful effects at diagnostic levels. A transvaginal scan can feel mildly uncomfortable but should not be painful — tell the operator if it is.
Related guides on MedicalVideos.com
Frequently asked questions
Do I have to have the internal (transvaginal) scan?
It gives the clearest pictures of the womb and ovaries, but it is your choice. You can decline or ask to stop at any time, and the team will explain what can be seen with the tummy scan alone.
Can a pelvic ultrasound check a coil?
Yes — it is the standard way to confirm a coil is in the correct position when the threads cannot be felt.
Related procedures — Imaging & Scans
Browse the P section of the A–Z list or return to the Procedures & Tests hub.