Find Services and other Health Information from A-Z


A myelogram is a test to check problems with your spinal canal. The canal is a tunnel-like structure in your spine that holds your spinal cord. A myelogram uses X-ray or computed tomography (CT) to take pictures of your spinal canal.

Woman lying face down on table under scanner. Health care provider wearing led vest is tilting table and looking at monitor.

Before your test

  • Don’t eat the morning of the test. But you can drink water or other clear fluids.

  • If told to, stop taking medicines before the test.

  • Arrange for someone to drive you home.

Tell the health care provider

Tell the health care provider if you:

  • Are pregnant or think you may be

  • Have any bleeding problems

  • Take blood thinners (anticoagulants) or other medicines. These include aspirin, certain antipsychotic medicines, and antidepressants. You may need to stop taking these 1 or more days before your test. 

  • Have had back surgery or low-back pain

  • Have any allergies

During your test

  • You will change into a hospital gown.

  • X-rays of your spine will be taken.

  • Your lower back will be cleaned, covered with drapes, and injected with a numbing medicine.

  • Contrast fluid will be injected into your spinal canal. The doctor may take out a small amount of spinal fluid.

  • Additional X-rays will be taken.

  • If you need a CT test, it will follow the X-rays.

Call your doctor

Call your health care provider right away if:

  • You have a headache that lasts 2 days or more

  • You have a fever

  • You have lasting pain in your back, or tingling in your groin or legs

After your test

  • Take it easy for the rest of the day, as advised.

  • Avoid physical activity, strenuous activities, or bending over for 1 to 2 days after the procedure, or as directed by your health care provider.

  • Lie down with your head raised if you get a headache, or if instructed to do so.

  • Drink plenty of water.

  • Your provider will discuss the test results with you during a follow-up appointment.