Most men researching this comparison have already been offered nerve blocks, usually through a GP referral or an NHS pain clinic. What they're trying to work out is whether that's the right move, or whether shockwave therapy is worth considering instead. Sometimes both.
This article sets out exactly how each approach works, what the evidence says about each one, and which situations suit each. No padding. Just the clinical picture.
What a Pudendal Nerve Block Actually Does
A pudendal nerve block involves injecting local anaesthetic, sometimes combined with a corticosteroid, at one or more points along the pudendal nerve. It's typically guided by ultrasound or fluoroscopy to ensure accurate placement, takes around 30 to 45 minutes, and is usually done under light sedation.
Two things it does well.
Diagnosis
If the injection provides significant pain relief, it confirms that the pudendal nerve is the source of your symptoms. For men whose presentation is complex or overlapping with other pelvic conditions, this diagnostic clarity is genuinely useful.
It's one of the most reliable tests for confirming pudendal neuralgia under the Nantes Criteria, an internationally recognised diagnostic framework for this condition.
Short-Term Pain Management
When pain is severe enough to make daily function difficult, a block can reduce it enough to allow other treatment to begin, whether that's pelvic floor rehabilitation, shockwave therapy, or simply getting through the period while a longer-term plan is developed.
The Honest Evidence on Nerve Blocks
The numbers on nerve blocks are worth knowing before you commit to a course of them.
For the majority of men, the relief is real but temporary.
For those who continue with repeat injections, typically monthly, the approach can maintain some relief for a period. Evidence indicates that repeated therapeutic blocks may lose efficacy after approximately two years. At that point, the clinical calculus shifts: you're repeating a procedure with diminishing returns.
A nerve block reduces pain by temporarily interrupting nerve signalling and decreasing local inflammation. What it doesn't address is the underlying pelvic floor tension that in most men is partly responsible for nerve compression in the first place.
This isn't a criticism of nerve blocks. They're a useful tool used correctly. The problem is when they become the only ongoing strategy for a condition that needs something more structurally aimed.
What Focused Shockwave Therapy Does Differently
Focused shockwave therapy works through a different mechanism entirely. Rather than blocking nerve signals, low-intensity acoustic waves are directed at the affected tissue, the pudendal nerve territory, the surrounding fascia, and the pelvic floor muscles contributing to nerve compression.
The aim is to reduce inflammation at a tissue level, break down fascial tightness, improve local circulation, and support nerve recovery.
- No injection, no sedation, no procedural environment
- Sessions run around 15 to 20 minutes in clinic
- Normal activities resume immediately afterwards
- The course is typically structured into six sessions rather than indefinite repeat procedures
- Effects are gradual, building over several weeks rather than arriving and departing within a day
The evidence base for shockwave therapy in pudendal neuralgia is growing, though it remains less extensive than for vascular erectile dysfunction. What the clinical experience and emerging research support is a meaningful reduction in nerve-related pelvic pain in appropriately selected patients when treatment is correctly targeted and delivered by someone who understands the condition specifically.
The key distinction is what each approach is attempting. Nerve blocks manage pain by interrupting signals. Shockwave therapy works on the tissue conditions creating those signals. One is aimed at the symptom; the other is aimed at contributors to the problem.
Where Each One Performs Better
Neither approach is universally superior. The right choice depends on your specific situation.
Nerve Blocks Perform Better When:
- Diagnosis needs confirming. If there's genuine clinical uncertainty about whether the pudendal nerve is the primary source of pain, a diagnostic block can resolve that question in a way shockwave therapy cannot.
- Pain is acute and severe. When a man can barely sit for ten minutes and needs something that acts quickly, a block provides faster relief than a six-week shockwave programme.
- As a bridge. Some men use a nerve block to manage pain while shockwave therapy and pelvic floor rehabilitation work on the underlying contributors over time.
Shockwave Therapy Performs Better When:
- You want to address tissue-level contributors, not just manage signals.
- Nerve blocks have already been tried and relief has been temporary.
- You want to avoid a procedural intervention with repeated injections.
- Pelvic floor overactivity is a significant component of your presentation.
- You're thinking about sustainable management, not just short-term relief.
When Both Make Sense Together
Sometimes the best strategy is sequential
For men in significant acute pain, the most effective approach is sometimes sequential rather than either/or. A nerve block that reduces pain to a manageable level, combined with shockwave therapy addressing the tissue contributors over the following weeks, gives the best foundation for lasting improvement.
This isn't standard NHS practice; the NHS tends to use nerve blocks as a standalone management approach rather than as part of a combined programme. In a private setting with the right clinical structure, combining them where appropriate is a more complete clinical strategy.
How to Decide
A few questions are worth considering:
Have you already tried a nerve block?
If so, how long did relief last? If it was temporary, that's useful information about where the limiting factor may be.
What is the main need right now?
Is the primary need immediate pain reduction, or building towards longer-term improvement?
Is pelvic floor tension part of the picture?
Tension, guarding, or pain that worsens with stress or prolonged sitting can change which approach is most appropriate.
Can you manage a structured six-week programme?
If not, quicker pain relief may need to come first before longer-term rehabilitation begins.
None of these questions has a universal answer. They're what a proper assessment should work through.
At Male Health Clinic, the initial assessment covers your full symptom history, any previous treatments, including nerve blocks and how you responded to them, a physical assessment of the pelvic floor and pudendal nerve territory, and a clear recommendation on which approach makes the most sense for your specific presentation.
What to Expect
More detail on what the assessment and treatment process looks like is available on our What to Expect page.
Evidence-Based Care
Our evidence-based approach outlines the clinical framework for how we assess and treat this condition.
For information on treatment costs, our pudendal neuralgia cost article covers what drives the total investment. Current pricing is on our price tariff page.
The Bottom Line
Nerve blocks are a legitimate and useful clinical tool. Their limitation is duration. The evidence is clear that for most men they provide temporary relief rather than a sustained solution.
Shockwave therapy works on different targets, takes longer to show results, but aims at the underlying tissue factors rather than the signal they're generating.
For a lot of men with pudendal neuralgia, the most sensible question isn't which one to choose. It's which one to start with, given where they are right now.
Start With a Free 15-Minute Chat
If you're trying to work out whether a nerve block, shockwave therapy, or a combined approach makes more sense for your situation, start with a straightforward conversation. No pressure and no obligation.
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