Patient Information Endometriosis Assessment


Because endometriosis mainly occurs behind the uterus, an earea that can not be seen weel on transabdominal ultrasound, a vaginal ultrasound will allow much better views. A narrow, gel covered probe is gently introduced into the vagina. Most patients experience no pain or only very mild discomfort. You will be asked to empty your bladder before the scan for your comfort as well as to optimise our views. The examination takes approximately 20 minutes. Sometimes patients believe the ultrasound will be done via the rectum but this is not the case. 

For more information on endometriosis and the ultrasound procedure click here.

If your doctor refers you specifically to look for endometriosis and you feel uncomfortable about having a vaginal ultrasound or if you have never had sexual intercourse, in which case a vaginal scan is not advisable, please advise our receptionist and she will discuss it with the doctor as an MRI may be a better way to look for deep infiltrating endometriosis in your situation. 

Because endometriosis can infiltrate the bowel, the doctor who does the ultrasound will carefully look at the bowel during the transvaginal ultrasound. When the rectum is empty, the views of the bowel are generally better as bowel content can cause shadows on ultrasound. Your doctor may have asked you to do bowel preparation.It is outlined below. If your doctor did not mention it, we leave it up to you whether yoo do the prep or not. A mild bowel preparation prior to the ultrasound may optimise the views when you have had a past history of severe endometriosis or when you have significant bowel pain during your periods. If you don't have a proven history of significant endometriosis, or no significant bowel symptoms, it is probably not necessary to take bowel preparation. 

Bowel Preparation

The bowel preparation is always mild and usually well tolerated. The most common one, outlined below, requires you to take a mild laxative the night before the ultrasound and an enema within an hour before the ultrasound. All the medication is over the counter medication. It is cheap and does not require a script.  . Make sure the chemist gives the fleet enema rather than the oral fleet.  

The night before the scan take 

  • Dulcolax tablet, one tablet of 5mg or Dulcolax SP 10 drop

This is mild laxative that will make it easy to go to the toilet the next morning. Some people experience some cramping.

Just before the scan (either at home or in our rooms if you live far away)

  • Fleet enema

A fleet enema is a bottle with 133ml of liquid in it.  It has a nozzle that is precovered with gel. Apply it while lying on your side, inserting the nozzle into the anus and squirting the full content of the bottle into the rectum.  An urge to go to the toilet will follow application.  Try to wait 3 to 5 minutes before going to the toilet. After this your rectum should be completely empty optimising ultrasound images.

When should the test be done? 

In general a gynaecological ultrasound is best done immediately after a period but can be organised at any time during the menstrual cycle, even when you are bleeding. It is not necessary to change your appointment if this happens, unless you feel uncomfortable having a vaginal scan then or if you get a lot of pain during your period.


Because at Camberwell Ultrasound for Women the doctor personally performs the ultrasound examination, the results can be discussed with you during and after the examination. Don't hesitate to ask questions. Abnormal results requiring more urgent attention will promptly be discussed with your referring gynaecologist. Some doctors receive the report electronically in which your doctor will have the result the same day. Otherwise a written copy of the result is sent in the mail and should reach your doctor 2 days after your ultrasound. Please advise us if you see your doctor earlier than that so we can fax the results.




T: 03 9882 3384 
F: 03 9882 0543

64 Auburn Grove
East Hawthorn, 3123

Monday - Friday
9am - 5pm