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The ilioinguinal and iliohypogastric nerve run together as a pair, branching off the first lumbar nerve near the lower back. These nerves provide motor and sensory innervation to the abdominal, groin, and upper thigh region. Due to the location of these nerves, they may be injured during abdominal surgeries such as hernia repair, appendectomy, or C-section. Symptoms of ilioinguinal or iliohypogastric neuralgia include pain and tenderness to palpation in the lower abdomen, groin, or upper thigh region. The pain may be associated with numbness, tingling, or burning or stabbing sensations. Often, the pain is aggravated by back extension or hip flexion and adduction.


Ilioinguinal and iliohypogastric nerve block involves an injection of anesthetic or a combination of anesthetic and steroid around the ilioinguinal and iliohypogastric nerves to provide pain relief. The injection is typically performed under ultrasound or fluoroscopy guidance for accuracy. It is also performed on an outpatient basis, which allows patients to return home the same day as the procedure.

If you respond to the injection positively, then additional injections can be performed when the symptoms return. Sometimes, a series of injections may be needed to fully treat the pain.

Usually, the procedure does not involve serious risks or complications. The most common side effect is temporary pain overlying the injection site, in which icing is recommended for any soreness or swelling.

Patients suffering from pain associated with paresthesia in the lower abdomen, groin, or upper thigh region may be candidates for ilioinguinal and iliohypogastric nerve blocks. Contact us at Remedy Pain Solutions for a consultation with a provider to determine if ilioinguinal and iliohypogastric nerve blocks are the right treatment for you.

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