Genitofemoral Nerve Block
(Targeted Relief for Groin and Upper Thigh Pain)
Overview
The genitofemoral nerve is a branch of the lumbar plexus that provides sensation to the groin, inner thigh, and genital region. When irritated or entrapped—due to surgery, trauma, or inflammation—it can cause persistent burning, aching, or sharp pain. This condition is often misdiagnosed or confused with other pelvic or abdominal sources of discomfort.
A genitofemoral nerve block is a minimally invasive, non-surgical procedure that targets the nerve with local anesthetic (and sometimes steroid) to relieve pain and help confirm the diagnosis. At Restore Spine and Pain, this procedure is typically performed under ultrasound or fluoroscopic guidance for optimal precision and safety.
Conditions Treated
- Genitofemoral neuralgia
- Groin pain following hernia repair or pelvic surgery
- Chronic post-surgical pain
- Neuropathic pain of the inner thigh or genital region
- Post-traumatic nerve irritation
What are the risks and side effects?
Risks and side effects are minimal, and serious complications are rare. We take every precaution to ensure your safety. Potential risks may include but are not limited to:
- Vasovagal response (dizziness or fainting)
- Infection or bleeding at the injection site
- Temporary numbness or weakness in the groin or thigh
- New or increased pain
- Allergic reaction to medication
- Elevated blood sugar in diabetic patients (if steroid is used)
Ask your provider if you have any concerns. Your physician will review the risks in detail before the procedure to ensure you are fully informed.
Pre-Procedure Information
How Should I Prepare?
- Driver Required: We ask that you arrange for a driver to take you home after the procedure.
- Food: You may eat a light meal 1–2 hours prior to the procedure. If sedation is planned, please follow the specific sedation protocol provided by our team.
Medications:
- Continue routine medications unless directed otherwise.
-
Blood thinners, Aspirin, NSAIDs, and supplements:
- Inform us in advance if you take blood thinners (e.g., Plavix, Eliquis, Xarelto, Coumadin), NSAIDs (e.g., ibuprofen, naproxen), Aspirin, or supplements that increase bleeding risk.
- Certain medications may need to be stopped for a short period of time before the injection.
- Speak with your prescribing provider to ensure it’s safe to temporarily stop these medications
- Our team will review your medication list and coordinate with your other providers if needed.
Notify us if:
- You have a fever, infection, or recent illness
- You have started antibiotics or had changes to your medications.
Sedation
Most procedures can be performed comfortably without sedation. However, if you have anxiety or difficulty lying flat, mild sedation may be offered at the discretion of the physician. Please discuss this with your provider in advance.
Special Instructions for Diabetic Patients:
Steroid injections may raise blood sugar levels for several days.
- Please contact your primary care physician or endocrinologist prior to the procedure for management recommendations.
- Monitor your glucose closely after the injection.
- Report sustained elevations to your managing provider.
Procedure Information
The procedure is performed using sterile technique under image guidance.
What to Expect:
1. Preparation:
- You will be positioned on the procedure table.
- The skin will be cleaned and numbed with a local anesthetic.
2. Injection Process:
- A needle is guided near the genitofemoral nerve.
- Contrast dye may be used to confirm positioning.
- Medication (usually local anesthetic with or without steroid) is injected to calm the nerve
Monitoring:
- You will be monitored during the procedure to ensure comfort and safety.
- Most procedures last 10-15 minutes, followed by a brief recovery period on-site.
Post-Procedure Information
What to Expect After the Procedure
- Relief Timeline: Steroids typically begin to work within 2 to 5 days, but in some cases may take up to 2 weeks.
- Activity:You may resume light activities the next day; avoid strenuous activity for 24 hours. We recommend you return to work the following day.
- Soreness: Temporary soreness at the injection site is common.
- Pain tracking:Keep a log of symptoms over the next 1–2 weeks
If successful, additional injections may be spaced out over time—typically no more than 3–4 per year in the same region.
Additional Instructions:
- Contact the office for any signs of infection, fever, or worsening pain.
- Attend follow-up as scheduled.
Schedule a Consultation
If you’re experiencing chronic groin or genital pain—especially after surgery or trauma—the team at Restore Spine and Pain is here to help. Contact us today to learn if a genitofemoral nerve block is right for you.