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Transvaginal ultrasound is an examination of the female pelvis and urogenital tract (kidneys and bladder). It helps to see if there is any abnormality in your uterus (womb), cervix (the neck of the womb), endometrium (lining of the womb), fallopian tubes, ovaries, bladder and the pelvic cavity. It differs from an abdominal ultrasound as it looks at the pelvic organs from inside the vagina.
The test is requested by your doctor if you have symptoms of pelvic pain, abnormal bleeding, to check for fibroids (muscle tumours of the uterus), polyps (areas of thickening of the lining of the uterus), ovarian cysts or tumours, infertility, or assessment of early pregnancy.
No preparation is necessary. You will be asked to go to the toilet and empty your bladder prior to the test being performed.
If you are wearing a tampon, it will need to be removed. If you are having a period this is not a problem and in some instances it is an advantage when assessing a variety of gynaecological problems.
You may be asked to sign a consent form prior to having the test.
It is a good idea to wear comfortable clothing that gives easy access to the lower part of your body.
After emptying your bladder you will be asked to undress from the waist down and you may be asked to wear a gown. You will then be asked to lie on an examination couch. Generally a sheet is provided to cover you. You will be asked to bend your legs and the transducer is inserted into the vagina. The transducer is slightly larger than a tampon and especially shaped to fit comfortably into the vagina. A protective cover is placed over the transducer and warm lubricating gel is applied to it for ease of insertion. It is gently moved around and pictures or images of the pelvis are obtained.
If you do not wish to have a vaginal ultrasound you can request a trans-abdominal ultrasound be performed instead. You should inform the reception staff of this as you will need to drink 2-3 glasses of water 30 minutes prior to your test and have a full bladder. A trans-abdominal ultrasound uses a smooth, hand-held transducer. The abdomen is exposed and warm water based clear gel is applied to the skin and the transducer is moved gently across the abdomen with a sliding and rotating action.
An ultrasound examination is performed by a trained health professional (a sonographer, obstetrician sonologist or radiologist) using a small, hand-held device called a transducer (or probe). The transducer transmits ultrasound waves which are relayed back to the ultrasound machine to produce images or pictures on to an ultrasound screen. The examination is performed in ‘real time’, which means that the images you see on the screen show the inside of your pelvic (lower abdomen) area. Pictures are taken during the examination.
There are no after effects of a transvaginal ultrasound. You will be able to resume normal activities
The examination takes between 15-30 minutes.
Sometimes you will be asked to wait and have the images checked by the radiologist, or obstetrician sonologist (specialist doctors). The sonographer may ask the doctor to come into the room and check what has been seen. Usually the doctor will let you know what they have seen and if there are any concerns.
In some clinics the doctor or specialist will perform the examination and will usually inform you of the findings.
There are no known risks of performing transvaginal ultrasound. It is a technique which uses sound waves to obtain pictures or images and there is no radiation involved.
If you are pregnant, there are no risks to the foetus (unborn baby). If you are pregnant and your waters have broken but you are not in labour (this is called premature rupture of the membranes) it is not advisable to have ultrasound due to a small increase in the risk of infection to your unborn baby.
If you are pregnant and known to have an abnormally low – lying placenta (called placenta praevia) and you are experiencing vaginal bleeding, it is not advised to have transvaginal ultrasound as it could make the bleeding worse.
The insertion of the transducer into the vagina allows a very close and clear view of the pelvic organs and very clear ultrasound images to be taken of the area. This will help to guide the discussion between you and your doctor about any further investigation or treatment that may be needed.
The examination is performed by sonographers who are health professionals specially trained and accredited to perform the test. Sonographers may be male or female. If you are not comfortable with a male you should let the reception staff know this prior to having the test. In cases where the patient is young, a female chaperone may be requested (usually a nurse at the hospital or practice). A partner, a female parent, female relative, or patient chaperone can be in the room at the consent of the patient.
The sonographer may leave the room to show the pictures to the reporting doctor who may come in and scan again if something needs to be checked. A full report of the scan will be written and sent to your referring doctor.
At some hospitals or radiology practices an obstetrician sonologist or radiologist (specialist doctors) may perform the examination.
The examination is performed in a radiology department of a hospital, private radiology practice or at a specialist clinic for obstetric and gynaecological imaging. The examination is performed in the privacy of an ultrasound room which may be dimly lit to allow the images on the ultrasound machine screen to be clearly seen by the person performing the scanning.
The time it takes your doctor to receive a written report on the test or procedure will vary depending on:
Please feel free to ask the private practice, clinic, or hospital when the written report will be provided to your doctor.
It is important that you discuss the results with your doctor, either in person or on the telephone, so that they can explain what the results mean for you.
Page last modified on 26/7/2017.
RANZCR® is not aware that any person intends to act or rely upon the opinions, advices or information contained in this publication or of the manner in which it might be possible to do so. It issues no invitation to any person to act or rely upon such opinions, advices or information or any of them and it accepts no responsibility for any of them.
RANZCR® intends by this statement to exclude liability for any such opinions, advices or information. The content of this publication is not intended as a substitute for medical advice. It is designed to support, not replace, the relationship that exists between a patient and his/her doctor. Some of the tests and procedures included in this publication may not be available at all radiology providers.
RANZCR® recommends that any specific questions regarding any procedure be discussed with a person's family doctor or medical specialist. Whilst every effort is made to ensure the accuracy of the information contained in this publication, RANZCR®, its Board, officers and employees assume no responsibility for its content, use, or interpretation. Each person should rely on their own inquires before making decisions that touch their own interests.