Is Dry Needling Evidence-Based? What the Research Says
What does dry needling do?
Mechanistically, dry needling induces a local twitch response that physically and biochemically alters the environment of tissue. Research confirms it locally normalizes electrical activity and modulates biomarkers, including increasing endogenous opioids (like beta-endorphins) and increasing blood flow by triggering the release of calcitonin gene-related peptide (CGRP), while decreasing pain-inducing mediators like Substance P.
What does the research say about trigger point dry needling? Is dry needling evidenced-based?
Dry Needling is effective in the short term for reducing pain and increasing function
The research overwhelmingly supports dry needling for short-term pain relief. An umbrella review of 36 systematic reviews found that dry needling is generally more effective than sham or no treatment for short-term pain relief in conditions like neck pain, shoulder dysfunction, and low back pain. Meta-analyses focusing on low back pain consistently show that DN significantly decreases post-intervention pain intensity compared to other interventions.
However, dry needling does not have good long-term research for pain reduction and functional improvements
There is limited and inconclusive evidence for long-term benefits. I believe this is due to clinicians and researchers underloading (or not loading at all) the tissue. Loading the tissue to near failure (1-2 reps in reserve) is essential for promoting tissue quality and health. Check out this consensus statement for a summary of the research and a practical approach to improving dry needling practice.
To improve long term function and pain reduction with dry needling you should consider:
Systematically identifying the root cause of the pain not just treat the symptomatic area
Using dry needling purely as a "spot treatment" for symptomatic pain is a huge clinical mistake that misses the true driver of the dysfunction. Clinicians must systematically assess the root cause (including movement and compensatory patterns) to target the relevant central or peripheral regions contributing to the issue, rather than just chasing the site of localized pain.
When a patient presents with chronic extremity pain, there is often a radicular connection in the spine where compromised nerve roots are decreasing the afferent connection to the nerve. I recommend using the consensus statement suggestion that if a neurological assessment reveals deficits (in dermatomes, myotomes, or reflexes), dry needling should be directed at spinal segmental structures. For example, treating the multifidi at the corresponding nerve root levels to modulate the central contributions to the patient's symptoms.
Use electrical stimulation 2 and 20 Hertz for at least 10 minutes
Adding electrical stimulation to dry needling significantly improves long-term neurologic health. Frequencies between 2 and 20 Hertz are considered the "sweet spot" to promote axonal regeneration. Applying this stimulation for at least 10 minutes is particularly recommended to drive positive neurological changes, especially for spinal or radicular dysfunctions, whereas frequencies exceeding 100 Hertz can cause tissue degradation.
Load the tissue to promote good tissue quality
I think this is the biggest mistake that is currently being made. Actively loading the tissue capitalizes on the immediate post-needling improvements in neuromuscular efficiency and reinforces optimal motor recruitment patterns. Studies consistently show that DN combined with exercise yields significantly better outcomes than exercise or DN alone.
If you are looking to learn more, check out this episode of the Rehab and Performance Lab Podcast on dry needling with Dr. Edo Zylstra – a clinician who has been practicing and teaching dry needling for over two decades – to dig into what the evidence actually supports, where it falls short, and why that gap exists.
We cover the local biochemical response that happens when a needle hits tissue, why most clinical trials struggle to capture what skilled clinicians actually do, and the biggest mistake practitioners make when they add dry needling to their toolkit.
Spoiler: it's not about the needle.
If you use dry needling in your practice – or you've been on the fence about it – this episode is worth your time.
You can listen to the episode at the links below. If you'd like CEUs, make sure to use the MedBridge link.
Waterway T, Beougher J, Butler R, Church K, Cook G, Falsone S, Hortz B, Opitz T, Plisky PJ, Zylstra E, Martin R. Treatment Guidelines and Decision Tree for Dry Needling Musculoskeletal Conditions: A Consensus Statement. Int J Sports Phys Ther. 2026 May 1;21(5):556-567. doi: 10.26603/001c.161025. PMID: 42083628; PMCID: PMC13135490.
