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Ganglion Impar Injection

What is a Ganglion Impar Injection?

A ganglion impar block is a type of injection that eases pain. It’s used for a variety of health problems that cause pain in the lower pelvis and groin.

Your brain sends information to the body through pathways known as nerves. Nerves also receive information from the body and send it to the proper regions of the brain. A ganglion is a place in the body where many nerves intersect. Nerves that communicate some types of pain from the lower pelvis and groin pass through the ganglion impar on their way to the brain.

The ganglion impar sits just in front of your sacrum. The sacrum is the lowest part of the spine, sitting just above the tailbone (coccyx).


Symptoms Treated with a
Ganglion Impar Injection

  • Pain in the tailbone
  • Pelvic pain
  • Perineal pain
  • Rectal pain
  • Visceral pain
  • Complex Regional Pain Syndrome
  • Cancer pain
  • Neuropathic pain

After a Ganglion Impar Block?

Generally, you will be watched for 30 to 60 minutes after the procedure. Make sure someone can drive you home. You should not plan to do anything strenuous or anything that calls for your full attention for the rest of the day.

Ask your healthcare provider about any activity restrictions after the procedure. You should be able to eat and drink normally. Ask if you should resume your normal medicines. Make sure to follow all your healthcare provider’s instructions for care.

It is common to have some pain at the injection site for a few days. Many people feel relief from their pain soon after the procedure. This relief might last a few hours, a few weeks, or longer depending on the medicine used.

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