Prolotherapy
A course of injections of an irritant solution (most often a sugar solution, hypertonic dextrose) into or around a painful tendon, ligament or joint, intended to provoke a healing response — an adjunct with limited and mixed evidence, not a proven cure.
✓ Medically reviewed by a GMC-registered consultant · last reviewed September 2026 · next review September 2027 · how we review
In short
- Prolotherapy injects an irritant solution (usually a sugar solution) into or around a tendon, ligament or joint, aiming to provoke healing — usually as a course.
- The evidence is limited and mixed, with no standard technique, so it is not a proven cure and results vary widely.
- It is an adjunct to a loading and rehabilitation programme, which remains the mainstay.
- Be cautious of clinics that call it 'regenerative' as a certainty, guarantee results, or sell long, expensive courses of injections.
A plain-English summary. The detail — including risks and recovery — is below.
At a glance
A general guide. Your specialist will give you advice for your situation.
Avoids the risks of surgery for those wanting to try an injection-based option first
You have an active infection at or near the site, or are generally unwell.
Expect soreness and a flare of pain — this is part of how prolotherapy is meant to work. Use simple pain relief as advised and ease off heavy activity.
A clear plan combining prolotherapy with a loading and rehabilitation programme.
Expect soreness and a flare of pain — this is part of how prolotherapy is meant to work. Use simple pain relief as...
The puncture sites and bruising settle. Many clinicians advise continuing a graded loading programme between...
Sessions are usually spaced over weeks. Any benefit, if it comes, tends to build gradually over the course rather...
A reasonable point to review honestly whether it has helped, alongside your loading programme. Results are...

What is prolotherapy?
Prolotherapy (also called proliferation therapy) involves injecting an irritant solution — most often a concentrated sugar solution called hypertonic dextrose, sometimes with local anaesthetic or other agents — into or around a painful tendon, ligament or joint. It is usually given as a course of several injections over weeks.
The idea is that deliberately irritating the tissue provokes a mild inflammatory response that, in theory, kick-starts repair and strengthening. Whether this is what actually happens, and whether it reliably reduces pain, is not well established.
Prolotherapy is best understood as an adjunct — an extra option sometimes considered for stubborn problems that have not settled with a proper loading and rehabilitation programme — not a first-line treatment, and not a proven cure. The evidence is limited and mixed: studies use different solutions, concentrations and techniques, which makes them hard to compare, and reviews tend to suggest it may help some people as an addition to exercise rather than as a stand-alone treatment.
This guide explains what to expect and how to tell whether prolotherapy is being offered responsibly.
Types, options & approaches
There may be different ways to do this. The right approach depends on the clinical question and your circumstances.
Prolotherapy versus other options
| Feature | Loading rehab | Prolotherapy |
|---|---|---|
| Role | Mainstay | Adjunct |
| Evidence | Strongest | Limited / mixed |
| Sessions | Ongoing | Usually a course |
| Standardised? | Yes | No agreed recipe |
Prolotherapy is added to rehabilitation for stubborn cases, not used instead of it, and is not a proven cure.
Preparing for your procedure
- Tell the clinician your full medical history, including any bleeding problems, blood-thinning medicines, diabetes (dextrose is a sugar), infection or skin problems over the area.
- Discuss what rehabilitation you have already tried and for how long, as prolotherapy is meant to follow a proper loading programme.
- Ask which solution is used, how many sessions are proposed, and how far apart.
- Ask honestly about the evidence for prolotherapy for your specific problem and what the plan is if it does not help.
- Check whether you should pause any anti-inflammatory medicines, as some clinicians advise this because prolotherapy relies on an inflammatory response.
- Plan for the area to be sore for a few days after each session and to ease off heavy activity.
What happens
Prolotherapy is done as an outpatient. You stay awake. The skin over the target is cleaned, and the clinician identifies the painful tendon, ligament or joint, sometimes using ultrasound.
Local anaesthetic may be mixed into the solution or used to numb the skin, though the injections can still be uncomfortable. The irritant solution is injected into or around the target, sometimes at several points.
Each session usually takes around 15–30 minutes. Prolotherapy is typically given as a course of several sessions over weeks. There is no surgical wound, only needle puncture sites, which may be sore for a few days. You can normally go home soon afterwards, and your clinician will advise how to ease back into activity and continue rehabilitation.
Is this procedure right for me?
A good consultation should explore whether it's the right choice for you now — including reasons to wait or consider something else.
May not be suitable if…
- You have an active infection at or near the site, or are generally unwell.
- You have a significant bleeding disorder, or take blood thinners that cannot be safely managed.
- Your pain is from a different cause that has not been properly diagnosed.
- Poorly controlled diabetes, which may be relevant as dextrose is a sugar solution, until discussed with your clinician.
- You have not yet tried a proper loading and rehabilitation programme, which should normally come first.
Delay or rearrange if…
- You have an active infection anywhere, particularly over an injection site.
- You are pregnant or breastfeeding and this has not been discussed.
- Your diagnosis is uncertain or has red-flag features that have not been assessed.
- You have recently started a blood thinner or had a change in bleeding risk.
- You are in a severe acute flare where settling it first is more sensible.
Alternatives to discuss
- A progressive loading and rehabilitation programme, which is the mainstay for tendinopathy.
- Other adjuncts such as PRP, high-volume injection or shockwave therapy, each with its own mixed or limited evidence.
- A corticosteroid injection in selected cases (with caution, generally avoided near the Achilles).
- Watchful waiting, as many of these problems improve with time and rehabilitation.
- Specialist or surgical opinion if a sustained programme has not worked.
Before you decide
Use this as a shared-decision checklist. The aim is not just “can this be done?”, but whether it is right for you, now, with the risks and alternatives clearly understood.
What matters most to me?
Think about symptoms, daily life, work, caring responsibilities, sport, fertility, travel, appearance and anxiety — the right choice depends on your priorities, not just the medical facts.
What are all my options?
Ask about waiting, monitoring, medicines, rehabilitation, a smaller or larger procedure, a different test, NHS referral, or a second opinion where that would help.
What would make me pause?
Active infection, pregnancy, unstable medical problems, smoking, medicines that increase bleeding, poor support at home, or feeling pressured are all reasons to slow down and get tailored advice.
What happens if I do nothing today?
For some problems, waiting is safe; for others, delay can make treatment harder. A good consultation should explain the trade-off in plain English.
Comfort, sedation or contrast choices
If local anaesthetic, sedation, contrast or pain relief is used, ask what is planned, why, and what it means afterwards.
Benefits
- Avoids the risks of surgery for those wanting to try an injection-based option first
- Uses simple solutions rather than drugs with major systemic effects
- May reduce pain and improve function in some people as an addition to exercise
- Does not carry the same tendon-weakening concern as repeated steroid
- Can be combined with a loading programme rather than replacing it
- Only a minor procedure, usually done as an outpatient with no surgical wound
Risks & complications
- Pain or soreness at and around the injection sites for a few days — expected, because prolotherapy works by irritating the tissue
- A post-injection flare of pain after each session
- Bruising at the puncture sites
- No clear benefit, given the limited and mixed evidence
- Stiffness or swelling around the treated area for a time
- Feeling faint at the time of the injection
- Needing several sessions with uncertain overall benefit
- Infection at an injection site, which can be serious and needs urgent treatment
- Damage to nearby nerves or blood vessels from the needle
- Reaction to the injected solution
Prolotherapy is usually low-risk for serious harm, and studies have generally not reported major adverse reactions, but the most common issue is a post-injection flare of pain, which is expected because the treatment works by deliberately irritating the tissue. Its main limitation is uncertain benefit and the lack of a standard technique. Choose a clinician who uses sterile technique and is honest that this is an adjunct, not a cure, and clear about how many sessions and at what cost.
Published figures to discuss
Reported benefit from prolotherapy varies widely between studies, solutions and techniques, and there is no standardised protocol, which makes results hard to compare. Reviews suggest possible benefit as an addition to exercise but do not establish it as a cure. Studies have generally not reported major adverse reactions, and serious complications are uncommon, but a post-injection flare of pain is an expected effect. Precise success or complication rates cannot be quoted reliably.
| Figure | Reported range | How to interpret it | Source / confidence |
|---|---|---|---|
| Post-injection pain flare | Common | Soreness for days is expected because the injection irritates tissue. | Guide sourcesClinical context |
| Benefit uncertain | Evidence varies by condition | Studies are mixed and protocols differ, so it should not be sold as a proven cure for every ligament or tendon problem. | Guide sourcesClinical context |
| Infection, bleeding or nerve injury | Rare but important | Risk depends on site, technique, sterile practice and medicines such as anticoagulants. | Dextrose prolotherapy for tendinopathy/ligament injuries: systematic review & meta-analysis — PubMedpubmed.ncbi.nlm.nih.govSource-linked context |
| Delayed proven treatment | Avoidable consent risk | Persistent weakness, instability, fracture, inflammatory disease or nerve symptoms should not be managed by injections alone. | Dextrose prolotherapy for tendinopathy/ligament injuries: systematic review & meta-analysis — PubMedpubmed.ncbi.nlm.nih.govSource-linked context |
These are literature figures, not a personalised prediction. Your own risks and likely benefits depend on your circumstances, your health, and how your care is carried out and followed up.
What happens afterwards
There is no surgical recovery — only needle puncture sites. 'Afterwards' is mainly about managing a flare of soreness for a few days after each session and continuing your rehabilitation while you see whether any benefit builds over the course.
- Soreness and a flare of pain for a few days after each session
- Bruising at the puncture sites
- No immediate improvement — any benefit builds over the course
- Being able to do gentle daily activities and your exercises
- Needing patience across several sessions before judging the result
Aftercare
- Continue or start your loading and rehabilitation programme as advised — prolotherapy is an adjunct to this.
- Use simple pain relief for the flare; note that some clinicians prefer you avoid anti-inflammatory tablets because prolotherapy relies on inflammation, so follow their advice.
- Ease off heavy or aggravating activity for the first few days after each session.
- Keep the puncture sites clean and watch for signs of infection.
- Attend the review to judge, honestly, whether the course has helped.
- Do not feel obliged to continue an open-ended course of injections if it is not helping — discuss this with your clinician.
- Simple pain relief to hand for the flare after each session
- Clear advice on whether to avoid anti-inflammatory tablets
- Your loading exercise programme to continue alongside
- A note of activities to ease off for a few days
- A clear plan of how many sessions and a review date
- Awareness of infection warning signs
- An agreed plan if the course does not help
Scars and how they heal
There is no surgical scar. Prolotherapy is given through a needle, leaving small puncture sites — sometimes several per session — which may be a little sore or bruised for a few days and then settle.
⚠ Get urgent help if…
- Spreading redness, heat, swelling, fever or feeling unwell — possible infection, seek urgent help
- Severe or rapidly worsening pain out of proportion to the injection
- New numbness, tingling or weakness beyond the injected area
- A sudden snap, severe pain or weakness in a tendon — seek urgent assessment for possible rupture
- A large or expanding bruise or swelling at a site
- Feeling very unwell, hot and shivery in the days after a session
Who to contact: your clinician, clinic or test provider first (keep their number to hand). For urgent advice when you can't reach them, call NHS 111. In an emergency, call 999.
General guidance — it doesn't replace the specific advice your specialist gives you.
Results & realistic expectations
A good result is reduced pain and improved function as part of a wider treatment plan, building over a course of injections and alongside a loading programme. Because the evidence is limited and mixed, some people improve and some notice little or no benefit, and prolotherapy cannot be promised to cure a tendon, ligament or joint problem.
Reviews suggest prolotherapy may help some people as an addition to exercise-based treatment, but studies are hard to compare because solutions and techniques vary so much. This is why honest care treats prolotherapy as an option to try alongside rehabilitation, not a certainty, and reviews whether the course actually helped.
Where prolotherapy appears to help, the durability of any benefit is uncertain and varies between people, and symptoms can return — particularly if the underlying overload is not addressed. Keeping up a loading programme and sensible activity gives the best chance of a lasting result. Further courses do not guarantee longer-lasting benefit.
Related tests, treatments or support
Prolotherapy is meant to be combined with a progressive loading and rehabilitation programme, which remains the mainstay. It is sometimes discussed alongside other adjuncts such as PRP; your clinician should explain the options and trade-offs honestly. It should not be sold as a stand-alone fix.
Follow-up & long-term care
You should have a planned review, usually after the course, to judge honestly whether it has helped alongside your rehabilitation. If it has not, the sensible step is to revisit the diagnosis and overall plan rather than simply keep going with more injections. Persistent symptoms may prompt specialist or surgical referral.
- Keep up your loading and strengthening exercises after the course.
- Increase activity gradually rather than in sudden jumps.
- Address contributing factors such as training load, technique or footwear.
- Return for review rather than assuming further courses are the answer if symptoms persist.
Repeat, follow-on and what comes next
- Prolotherapy is usually a course, and the number of sessions varies between clinicians without an agreed standard.
- If a course does not help, continuing with more injections does not guarantee benefit and the diagnosis and plan should be reviewed.
- Persistent symptoms despite prolotherapy and rehabilitation may prompt specialist or surgical referral.
- Open-ended paid courses without clear benefit are a red flag, not normal care.
Ask what happens if the result is unclear or needs repeating, and what is included if further tests or follow-up are needed.
What good aftercare looks like
- A clear plan combining prolotherapy with a loading and rehabilitation programme.
- A defined number of sessions and an honest review of benefit after the course.
- A named contact for questions or side effects.
- Clear infection warning signs and how to seek urgent help.
- A sensible threshold to stop, reconsider the diagnosis, or refer on if it is not helping.
What affects the cost
Costs vary a great deal between people and providers, and we don't publish prices. What matters is understanding what drives the cost and making sure your quote is complete. The main things that affect it:
- That it is usually a course of several injections, not a single treatment
- The number of sessions recommended and how far apart
- Whether ultrasound guidance is used
- The solution used and any added agents
- Whether an assessment, imaging and follow-up are included or separate
- Whether rehabilitation/physiotherapy is bundled or extra
- The cost per session and the total cost of the planned course
- Exactly how many sessions are included
- Whether ultrasound guidance is included
- Whether the assessment and any imaging are included
- Whether rehabilitation/physiotherapy is part of the package
- The cancellation policy
- What happens, and what it costs, if the course does not help or a complication occurs
On the NHS? Prolotherapy is not routinely funded by the NHS and is usually accessed privately; the mainstay of treatment for tendinopathy remains rehabilitation.
You're entitled to your total cost in writing — including reports, follow-up and what happens if the result is inconclusive — before you decide.
Consent traps and marketing red flags
These are not small details. They are often where patients lose choice, time to reflect, or realistic expectations.
Consent traps
- Not being told that the evidence is limited and mixed and that there is no standard technique.
- Prolotherapy described as 'regenerative' or curative as a certainty.
- No discussion of alternatives, including rehabilitation and doing nothing.
- Being committed to a long, expensive course before rehabilitation has been tried or without a review.
- Not explaining that a post-injection flare is expected and how to manage it.
Marketing red flags
- Guaranteeing results or calling prolotherapy a proven cure or 'regeneration'.
- Selling long, costly courses upfront without reviewing whether earlier sessions helped.
- Downplaying or skipping rehabilitation in favour of injections.
- Not mentioning that the evidence is limited and there is no standard recipe.
- Relying on testimonials rather than evidence.
Choosing a specialist safely
- Check the specialist is on the GMC Specialist Register for this area.
- Make sure they work at a CQC-registered service, and look for membership of the relevant Royal College or professional body.
- You're entitled to time to consider and to have your questions answered before you agree — the specialist who looks after you should explain it, not a salesperson.
- Be wary of pressure: time-limited offers or deposits taken before you've had time to think are red flags, not bargains.
- You're entitled to your total cost in writing — including any follow-up — before you decide.
Questions to ask your medical professional
Take this to your consultation. A good specialist will welcome every one of these.
- What is the evidence for prolotherapy for my specific problem?
- Have I had a proper loading and rehabilitation programme first?
- Which solution will you use, how many sessions are planned, and how far apart?
- How do you keep the injections sterile, and will you use ultrasound?
- How and when will we judge whether the course has worked?
- What is the plan if it does not help, and will you avoid open-ended repeat courses?
- Are you on the GMC Specialist Register for this area, and which Royal College or professional body are you a member of?
- Will you be the specialist who carries out my procedure, and who looks after me afterwards?
- What are the risks for someone like me, and how often do your own patients have a problem or need it repeated or redone?
- What does a realistic result look like — and what can this procedure not achieve?
- What are my options, including waiting, doing nothing for now, or choosing a different approach?
- Can I have written information, results and aftercare instructions in a format I can use, including any accessibility or communication support I need?
- What is the total cost in writing, including any follow-ups, and how much time do I have to decide?
Frequently asked questions
Does prolotherapy work?
Why do the injections cause pain on purpose?
How many sessions will I need?
Is it safe?
Can I get prolotherapy on the NHS?
Do I still need to do my exercises?
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How we made this page
Medically reviewed by a GMC-registered consultant. Written in plain English, checked against NHS, NICE, GMC and relevant Royal College / specialist-society guidance, and kept under review. No clinic paid to appear on this page, and we publish no pricing. This is general information to help you prepare — it is not a substitute for advice from your own clinician. How we review our guides →
Source hierarchy: UK regulator and NHS/NICE guidance first, then relevant Royal College or specialist-society guidance, then peer-reviewed evidence for procedure-specific figures where available.
Sources & standards: Dextrose prolotherapy for tendinopathy/ligament injuries: systematic review & meta-analysis — PubMed Hypertonic dextrose injection in lateral elbow tendinosis: systematic review — PubMed Versus Arthritis — Achilles tendinopathy NHS — Tennis elbow Faculty of Sport and Exercise Medicine UK
Reviews reflect patients' experience of care, not clinical outcomes. For procedure volumes and outcome data see PHIN.
Last medically reviewed 2026-09-21. Spotted something wrong or out of date? Report an error in this guide.
Related guides: Tendinopathy treatment (tennis elbow, Achilles, patellar) · Platelet-rich plasma (PRP) injection · High-volume injection for tendinopathy · Shockwave therapy (ESWT) · Barbotage for calcific tendinopathy