Overview
The genito femoral nerve runs from the lower spine through the abdomen and into the groin region. Irritation may occur after hernia surgery, abdominal or pelvic surgery, trauma, inflammation, or nerve entrapment. Symptoms can include groin pain, upper thigh discomfort, burning sensations, or pain triggered by pressure, movement, or clothing.
A genito femoral nerve block delivers local anaesthetic, sometimes combined with steroid medication, around the nerve. This aims to reduce inflammation, interrupt pain signals, and help confirm whether the genito femoral nerve is contributing to your symptoms.
Who This Treatment Helps
A genito femoral nerve block may be suitable for people with:
• Groin pain or upper thigh pain
• Burning, tingling, or sharp nerve related symptoms
• Pain after hernia repair or abdominal surgery
• Pain worsened by pressure, movement, or clothing
• Suspected nerve irritation or neuralgia
• Limited improvement from medication or physiotherapy
A consultation is needed to confirm suitability.
What Is a Genito Femoral Nerve Block
This is a targeted injection delivered near the genito femoral nerve. The injection typically contains:
• Local anaesthetic to temporarily numb the nerve
• Steroid medication to reduce inflammation
Ultrasound guidance or CT guidance may be used to improve accuracy and safety. Relief after the injection supports the diagnosis and helps guide the longer term treatment plan.
What to Expect During the Procedure
You will lie comfortably, usually on your back. The skin is cleaned and numbed, then a fine needle is guided into place using imaging. Medication is delivered around the nerve, then you are monitored briefly before going home.
After the Procedure
Temporary numbness in the groin or upper thigh can occur. Mild soreness is common. Some people notice immediate improvement from the local anaesthetic, while steroid benefit may build over several days.
Your consultant may advise:
• Avoid strenuous activity for 24 to 48 hours
• Wear loose clothing to reduce pressure
• Continue physiotherapy if recommended
• Monitor symptoms and report any concerns
Benefits
• May reduce groin and upper thigh pain
• Useful for confirming nerve involvement
• Minimally invasive with short recovery time
• Can improve comfort with walking and daily activity
• May reduce reliance on medication
• Supports rehabilitation and activity progression
Possible Risks and Side Effects
• Temporary increase in pain
• Local bruising or soreness
• Temporary numbness
• Infection rare
• Bleeding
• Allergic reaction uncommon
• Very rarely irritation of nearby nerves or structures
When to Consider Other Options
If symptoms suggest involvement of other nerves or pain pathways, your consultant may discuss ilio inguinal nerve block, caudal epidural, pelvic floor therapy, or multidisciplinary care.
Safety Note
Please inform your consultant about blood thinners, allergies, diabetes, pregnancy, and recent infections. Avoid driving if numbness persists.
Arrange a consultation to discuss whether a genito femoral nerve block may help your pain.