Ultrasound scan

Find out when you might need an ultrasound, what an ultrasound involves and what the results can tell you.

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If you're concerned that you may have symptoms of ovarian cancer, ask your GP about having a CA125 blood test and ultrasound scan. Ultrasound scans are sometimes done alongside or after a CA125 blood test. 

If you have a question that isn't covered here, call our support line on 0808 802 6000 (freephone) or speak to your GP.

What is an ultrasound scan?

Ultrasound scans are used to check your ovaries for any unusual changes. Your GP might arrange for an ultrasound scan if you have any symptoms of ovarian cancer.

An ultrasound scan creates a picture of the tissues and organs inside your body using high-frequency soundwaves. Ultrasound scans usually take place in the radiology department of your local hospital and are done by a medical specialist called a sonographer

Your appointment letter will include details of any ways you need to prepare before your scan. For example, you will need to have a full bladder for an abdominal (tummy) ultrasound. 

Image of patient getting an ultrasound scan

There are two different types of ultrasound scans used to check for ovarian cancer – abdominal ultrasounds and transvaginal ultrasounds.

Abdominal ultrasound

This scan is used to look at the organs in your abdomen and pelvis (the area between your hip bones). The sonographer will put ultrasound gel on your tummy to help the ultrasound probe have good contact with your skin. They will then gently move the probe around your tummy to get a good picture of your organs.  

You’ll need to come to the appointment with a full bladder. An abdominal ultrasound isn’t painful, but you may feel some discomfort due to a full bladder. 

Transvaginal ultrasound

This scan is used to create a clearer picture of your reproductive organs including your uterus (womb), ovaries, fallopian tubes and cervix. You can have an empty bladder for this type of ultrasound.  

Diagram of transvaginal ultrasound probe and reproductive organs

The sonographer will put a small probe into your vagina. The probe will be in a protective cover which will be covered with an ultrasound gel. The sonographer will press gently on your tummy while moving the probe to get a good picture of your pelvic organs. You may feel some mild discomfort, but it shouldn’t be painful.

Good to know

You can bring someone to accompany you at any point before or during the scan.

Ultrasound scans are very safe and you'll be able to go home once your scans are complete. You can eat and drink straight after and resume sexual activity as soon as you feel ready.

It’s OK to have an abdominal or transvaginal ultrasound scan while you’re on your period, just let the sonographer know beforehand.  

Why might I need both an abdominal and transvaginal ultrasound?

Sometimes it can be difficult for the sonographer to see the ovaries on an abdominal ultrasound. This is because the ovaries are very small, about the size and shape of almonds. They’re buried deep within your pelvis surrounded by other organs. A transvaginal ultrasound helps the sonographer to get a clearer picture of your ovaries.

Whilst having a transvaginal scan might feel a bit daunting, your health is worth more than a moment of discomfort. The scan is quick, the staff do it all the time, and it could really help. An ultrasound is a powerful tool that helps you take control, not lose it.

Claire
Image of testing for ovarian cancer information booklet

Testing for ovarian cancer booklet

This booklet explains what a CA125 blood test and ultrasound scan is and how they're used to help rule out or diagnose ovarian cancer.

When will I get my ultrasound scan results?

Your GP will let you know how long the results should take and will also tell you how to find out the results of your scans. 

The examiner won't be able to give you any results on the day. The ultrasound pictures will be examined by a sonographer/radiologist. They'll send a detailed report of their findings and recommendations to your GP. 

The information in the report will help your GP decide what action to take next. If you don't hear anything within two weeks, give your GP a call.

What do the results mean?

The sonographer/radiologist will be looking for unusual changes to your ovaries. These include a change in texture, difference in size or visible lumps. Changes of this type can be caused by a number of conditions including cysts, endometriosis and sometimes by ovarian cancer.

The results of the ultrasound scans will help your GP decide what to do next. If any changes are seen which might indicate ovarian cancer, your GP will arrange for an appointment with a gynaecological oncologist. This will be for further tests and investigations to rule out or confirm ovarian cancer.

If you haven't already had one, your GP might want to do a CA125 blood test.

If your scan appears normal but your symptoms continue or get worse go back to see your GP within one month.


Last reviewed: June 2026

Next review: June 2029

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References

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