Wessex Pain Clinic

Pudendal Nerve Block

A pudendal nerve block is a targeted injection used to diagnose and manage pain in the pelvic, perineal, or genital area. It involves placing local anaesthetic — often with steroid — around the pudendal nerve, which is responsible for sensation and function in these sensitive regions.

How the Procedure Works

The pudendal nerve runs from the lower spine through the pelvis and supplies sensation to the perineum, anus, genitalia, and parts of the pelvic floor. If irritated, compressed, or sensitised, it can lead to pudendal neuralgia — a complex and often distressing pain syndrome.

Under X-ray or ultrasound guidance, your consultant places a fine needle near the pudendal nerve as it passes through the pelvis — usually near the ischial spine or Alcock’s canal. A small volume of local anaesthetic, sometimes with corticosteroid, is then injected to reduce inflammation and block pain signals.

The procedure may also be used to confirm that the pudendal nerve is the source of your symptoms.

Wessex Pain Clinic

What Conditions It Can Help With

A pudendal nerve block may be recommended for:
Pudendal neuralgia (burning, stabbing, or aching pain in the perineal/genital area)
Pain aggravated by sitting or prolonged pressure
Chronic pelvic or perineal pain of suspected nerve origin
Genital, rectal, or anal pain without clear structural cause
Pain following pelvic surgery, trauma, or childbirth

Aimed Benefits

This injection is designed to:
Provide pain relief by calming the pudendal nerve
Improve sitting tolerance and reduce pain during daily activities
Clarify whether the pudendal nerve is contributing to your symptoms
Guide future treatments, including physiotherapy, nerve stimulation, or pulsed radiofrequency
Some patients may benefit from repeat injections or further targeted therapies depending on the response.

What to Expect

The procedure is carried out as an outpatient treatment, usually taking 20–30 minutes. You’ll lie on your front, and the area will be cleaned and numbed with local anaesthetic. Your consultant will use live ultrasound imaging to accurately guide the needle to the pudendal nerve.

You may experience a warm or tingling sensation in the pelvic area during the injection. Some numbness in the perineal region is expected and usually temporary. You’ll be monitored briefly afterwards and can usually go home the same day.

Risks and Considerations

All procedures carry some risks, which will be discussed in detail with you during your consultation. You will have the opportunity to ask questions, and formal consent will always be obtained before any procedure is carried out.

Combined Approach / Multidisciplinary Care

At Wessex Pain Clinic we find that the best results come from combining medical treatments with active rehabilitation. Procedures are often most effective when paired with physiotherapy, movement-based exercise, and — where appropriate — psychological support. This comprehensive approach addresses both the physical and emotional aspects of pain and supports longer-term improvement.

Key Points Summary

  • Image-guided injection near the pudendal nerve
  • Used for pelvic, perineal, or genital nerve pain
  • Aims to provide relief and confirm diagnosis
  • Outpatient procedure with minimal downtime
  • Often part of a multidisciplinary pelvic pain management approach

Disclaimer

Results vary between individuals and cannot be guaranteed. Your consultant will discuss whether this procedure is appropriate for you.

At Wessex Pain Clinic, we work as a team and meet regularly to discuss complex, treatment resistant or unusual cases. As such you will often receive the expertise of several pain consultants. We believe that we are one of very few pain clinics to offer this.

Driving advice: You should not drive that day if receiving any sedation. Our procedures do vary on whether they are possible to drive home from yourself, please seek advice from your consultant about driving advice. If you are seeing us for an injection and planning on driving, please check with us beforehand about whether it will be possible to drive yourself home afterwards.

Wessex Pain Clinic provides consultant-led assessment and treatment for acute and chronic pain conditions. Our multidisciplinary team includes Consultant Pain Specialists, Physiotherapists and Psychologists, offering evidence-based interventions alongside rehabilitation and self-management support. We welcome patients from across Hampshire, Dorset, Wiltshire, Surrey and Sussex, including Winchester, Basingstoke, Southampton, Portsmouth, and Chichester – with both in-clinic appointments and remote consultations available across the wider Wessex region.