Endoanal ultrasound (3D)

What’s the test for?

This test can look at the muscles in your back passage to see if they are working as they should.

You may be referred for this test if you have been experiencing troublesome bowel problems. These problems can often be caused by injuries or weakness to those muscles or problems with the wall of your back passage (anal canal).

About the procedure

Your physiologist will insert a narrow probe (about the width of your little finger) into your back passage. It may feel uncomfortable when the tube is inserted, but it should not be painful.  You may feel embarrassed, but we understand this and will help you feel at ease throughout.

The screen connected to the probe will enable the physiologist to view images of the area. It also allows pictures to be taken of your muscles and surrounding tissues in your back passage.

How to prepare

You do not need any special preparation for your appointment.  You may eat and drink as normal and continue with any normal medication.

What can be learned

This test is an examination of your back passage that allows us to see the muscles involved in passing stool and the tissues that surround these.

Together, this allows us to assess how your back passage is functioning.

Following your test, your data will be analysed, and results written up into a report. The report will be sent to both you and your referring consultant/doctor, who will explain the results to you in a follow-up consultation.

Information leaflet
Information leaflet

Find more information about this test using our PDF download.

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Pleasant and knowledgeable staff that made the experience more enjoyable than it should be!

London Patient