Tests for cancer of the uterus

If your doctor suspects that you have cancer of the uterus, you may have some of the following tests, but you are unlikely to need all of them. Your doctor will usually start with a physical examination and ultrasound of the pelvic area, but a diagnosis of uterine cancer can only be made by checking a sample of tissue (biopsy). Cervical screening tests and Pap tests are not used to diagnose uterine cancer.

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Pelvic examination

The doctor will feel your abdomen to check for swelling and any masses. To check your uterus, they will place two fingers inside your vagina while pressing on your abdomen with their other hand. You may also have a vaginal or cervical examination using a speculum, an instrument that separates the walls of the vagina. This is the same instrument used when you have a cervical screening test or Pap test.

Pelvic ultrasound

A pelvic ultrasound uses soundwaves to create a picture of the uterus and ovaries. The soundwaves echo when they meet something dense, like an organ or tumour, then a computer creates a picture from these echoes. A technician called a sonographer performs the scan. It can be done in two ways, often at the same appointment.

Abdominal ultrasound

To get good pictures of the uterus and ovaries during an abdominal ultrasound, the bladder needs to be full, so you will be asked to drink water before the appointment. You will lie on an examination table while the sonographer moves a small handheld device called a transducer over your abdomen.

Transvaginal ultrasound 

You don’t need a full bladder for this procedure. The sonographer covers a transducer wand with gel and inserts it into your vagina. Some women find a transvaginal ultrasound uncomfortable, but it should not be painful.

If you feel embarrassed or concerned about having a transvaginal ultrasound, talk to the sonographer beforehand. You can ask for a female sonographer or to have someone in the room with you (e.g. your partner or a female relative) if that makes you feel more comfortable. Even if you have had an abdominal ultrasound, the transvaginal ultrasound will usually still be needed as it provides a clearer picture of the uterus.

A pelvic ultrasound appointment usually takes 15–30 minutes. The pictures can show if any masses (tumours) are present in the uterus. If anything appears unusual, your doctor will suggest you have a biopsy.

Endometrial biopsy

This type of biopsy can be done in the specialist’s office and takes just a few minutes. A long, thin plastic tube called a pipelle is inserted into your vagina and through the cervix to gently suck cells from the lining of the uterus. This may cause some discomfort similar to period cramps. Your doctor may advise you to take a non-steroidal anti-inflammatory drug (e.g. ibuprofen) before the procedure to reduce this discomfort.

The sample of cells will be sent to a specialist doctor called a pathologist for examination under a microscope. If the results are unclear, you may need another type of biopsy taken during a hysteroscopy.

Hysteroscopy and biopsy

This type of biopsy is taken during a hysteroscopy, which allows the specialist to see inside your uterus and examine the lining for abnormalities. It will usually be done in hospital under a general anaesthetic.

The doctor inserts a thin tube with a tiny light and camera (known as a hysteroscope) through your vagina into the uterus. To take the biopsy, the doctor uses surgical instruments to gently widen (dilate) the cervix and then remove some tissue from the uterine lining. This is known as a dilation and curettage (D&C). You will stay in hospital for a few hours and are likely to have period-like cramps and light bleeding for a few days afterwards.

Further tests

After uterine cancer is diagnosed, you may have blood tests to check your general health. Your doctor may also arrange one or more of the imaging tests below to see if the cancer has spread outside the uterus.


You may have a chest x-ray to check your lungs and heart.

CT scan

A CT (computerised tomography) scan uses x-ray beams to take many pictures of the inside of your body and then compiles them into one detailed picture. However, it is not able to detect very small (less than 1 cm) tumours.

You will be asked not to eat or drink anything (fast) before the CT scan. You may need to have an injection of or drink a special dye (the contrast) that makes your organs appear white in the pictures, so anything unusual can be seen more clearly. You will lie on a table that moves in and out of the scanner, which is large and round like a doughnut. The test is painless and takes about 15 minutes.

MRI scan

MRI (magnetic resonance imaging) is not covered by Medicare for uterine cancer, so check with your doctor what costs are involved. This scan uses a powerful magnet and radio waves to create detailed cross-sectional pictures of the inside of your body.

If you are having an MRI scan, let your medical team know if you have a pacemaker or any other metallic object in your body. The magnet can interfere with some pacemakers, but newer pacemakers are often MRI-compatible. You will usually be asked to fast for four hours before the scan. As with a CT scan, a dye may be injected into a vein to help make the pictures clearer.

For the scan, you will lie on a treatment table that slides into a metal cylinder. The test is painless, but the noisy, narrow machine makes some people feel anxious or claustrophobic. If you think you may become distressed, mention it beforehand to the medical team. You may be given medicine to help you relax, and you will usually be offered headphones or earplugs. This test can take 30–90 minutes.

PET scan 

Medicare covers the cost of PET (positron emission tomography) scans only for uterine sarcomas. PET scans are not routine for endometrial cancers, but may be recommended in particular cases – ask your doctor what costs are involved.

Before a PET scan, you will be injected with a small amount of a glucose (sugar) solution containing some radioactive material. You will rest for about 30–60 minutes while the solution spreads throughout your body, and you will then be scanned. Cancer cells show up brighter on the scan because they absorb more of the glucose solution than normal cells do.

It may take a few hours to prepare for a PET scan, but the scan itself usually takes only about 15 minutes. The radioactive material in the glucose solution is not harmful and will leave your body within a few hours.

Before having scans, tell the doctor if you have any allergies or have had a reaction to contrast during previous scans. You should also let them know if you have diabetes or kidney disease or are pregnant.

Genetic tests after surgery

In most cases, uterine cancer will be removed by surgery and sent to a laboratory for further testing. For endometrial cancer, some of these tests will check whether you have particular signs in the cancer cells that may indicate a genetic cause for the cancer.

For example, less than 5% of women with endometrial cancer have a fault (mutation) in the mismatch repair (MMR) genes, a problem known as Lynch syndrome. If you have Lynch syndrome, you are at increased risk of developing other cancers and it is important for you, your family and your doctors to know about this.

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This information was last reviewed in March 2019
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