You will need to be referred to The Functional Gut Clinic by your Doctor (GP or Consultant) for most of our tests. If you are not certain how to do this or need help finding a Doctor please call us on 0207 486 7777.

Once you have been referred, we will contact you to make a convenient appointment and to give you instructions about the test preparation. We do not have a waiting list and you will normally be booked in within a week or so of us making contact to give you time to prepare for the tests.

If you have any queries or questions then please email us at

General Information

Your doctor has arranged for you to have some tests on your upper or lower bowel/back passage. Each of the tests can tell the doctor something different about how your bowel is working, and enable them to decide on the best treatment for your problem.

Do I need to do anything before my appointment?

If instructed (see appointment letter), you may be required to stop some of your medications that effect bowel function, acid production or antibiotics.  You may also need to restrict your diet, fast from midnight before the test or be under no restrictions, so it is important to read your information sheets carefully. If you have any queries, please email or call us and we will be happy to answer any questions.

Do I need to bring anyone with me?

No. There is no reason why the tests should have any adverse effects. However, you are welcome to bring along somebody for support if you so require.

What will happen when I arrive for my appointment?

You will be asked some questions relating to how your bowel works and the problems you have been having. We will then explain the procedures to you and you will be asked to sign a consent form, giving us permission to do the tests.

Although there are few risks involved in performing the tests, some patients may find they have some mild discomfort. You may be asked to change into a gown before the tests are done if the tests are on your lower bowel.

Are these tests painful at all?

The tests can be a little uncomfortable for some people but we are very gentle and very understanding. The tests are carried out by professional staff who are committed to ensuring that any discomfort is minimized and that your privacy is maintained at all times.

Why are these tests needed?

These tests are an important part of the investigation and the future management of your bowel condition. Their results assist your doctor in planning appropriate treatment for you so it is important for you to keep your appointment. If you have any concerns or want further information about these tests please do not hesitate to contact the department.