Diagnosis

Herniated Disc Diagnosis

Diagnosing a herniated nucleus pulposus begins with a complete history of the problem and a physical exam.

Your doctor will want to make sure that you are aware when you have to urinate or have a bowel movement. If there is a problem, it could indicate that a herniated disc in the lumbar spine is pushing against the spinal cord.

Diagnostic Tests

X-rays

The doctor may suggest taking X-rays of your low back. Regular X-rays can't show a herniated disc, but they can give your doctor an idea of how much wear and tear is present in the spine.

MRI

The MRI scan is the most common test used to diagnose a herniated disc. This test is painless and accurate. There do not appear to be any side effects with the test. MRI has almost completely replaced other tests when a herniated disc is suspected.

CT Scan

Sometimes the X-ray and MRI do not tell the whole story. Other tests may be suggested. A myelogram, usually combined with a CT scan, may be necessary to give as much information as possible.

Discogram

When surgery for lumbar disc herniation is being considered, doctors may order a discogram to locate which discs are causing pain.

EMG and SSEP

Electrical tests can confirm that the pain in your leg is actually coming from a damaged nerve. These tests may be required before a decision is made to proceed with surgery.