Does Dry Needling Help Achilles Tendonitis?

Dry needling shows promising but still limited evidence for helping Achilles tendonitis, with most research pointing to short-term improvements in pain and function that are roughly comparable to other common treatments like eccentric exercise or shockwave therapy. The catch is that the Achilles tendon has been studied far less than other tendon sites in dry needling research, so a lot of what clinicians rely on comes from broader tendinopathy evidence and a handful of Achilles-specific trials. Whether dry needling delivers something beyond a well-designed placebo effect remains genuinely debated.

What Happens Inside a Damaged Achilles Tendon

Before understanding what dry needling might do, it helps to know what is actually going wrong in the tendon. The condition most people call “Achilles tendonitis” is more accurately described as tendinopathy, because the problem is usually degenerative rather than inflammatory. Tissue studies show that affected tendons have disorganized and fragmented collagen fibers, an increase in certain cell types and ground-substance molecules, and growth of new, often abnormal blood vessels into the tendon substance.¹ This is not a tendon that is simply inflamed and needs rest. It is a tendon whose internal structure has deteriorated, which is why treatments that try to restart a healing response, rather than just reduce inflammation, have become the focus of modern management.

How Dry Needling Is Supposed to Work on Tendons

The basic idea is controlled damage. A thin filament needle is inserted repeatedly into the affected area of the tendon, creating micro-trauma that disrupts the chronic degenerative tissue and encourages localized bleeding and the proliferation of fibroblasts, the cells responsible for producing new collagen.² In essence, the needle tricks the tendon into behaving like it has a fresh injury, which kickstarts a healing cascade the body had otherwise given up on.

Animal research supports this idea at a biological level. In a study on rat tendons, needling caused a measurable increase in blood flow, inflammation, and production of collagen and other structural molecules compared to untreated controls. The mechanical properties of the tendon dipped initially, which is what you would expect from deliberate tissue disruption, but returned to or exceeded pre-needling levels by six weeks.³ That timeline is worth noting: the tendon temporarily weakens before it gets stronger. It is a plausible biological mechanism, though translating rat tendon findings to a human Achilles under load is a meaningful leap.

Some practitioners also target myofascial trigger points in the calf muscles, particularly the soleus and gastrocnemius, rather than needling the tendon itself. The rationale is that taut, painful bands in these muscles alter how force is transmitted through the Achilles, contributing to ongoing irritation. This is a different technique with a different target, though both fall under the “dry needling” umbrella, which creates confusion when people try to compare studies.

What the Clinical Evidence Actually Shows

Two systematic reviews have looked at dry needling for tendinopathy broadly, including Achilles-specific studies. Both found that dry needling improved pain and function, but neither could conclude it was clearly superior to other active treatments. One review, covering seven randomized controlled trials with 357 total participants across several tendon sites, reported that every included study showed a significant positive effect on pain and other outcomes, with dry needling appearing as effective as other methods at relieving symptoms immediately after treatment and up to six months out.⁴ The second review found improvements in pain, function, and muscle performance in each study that measured those outcomes, but also flagged conflicting results when dry needling was compared head-to-head with other treatments.⁵

The honest summary is that dry needling consistently makes people feel better, but it is hard to say whether it makes them feel better than they would have with a good exercise program or another hands-on therapy. The research base includes multiple tendon sites, and the Achilles-specific slice is thin. A narrative review of the broader dry needling literature noted that the wrist, patellar tendon, rotator cuff, and greater trochanter have received more attention than the Achilles, though the overall direction across sites was positive.²

How Dry Needling Compares to Other Achilles Treatments

One of the more direct comparisons available is dry needling versus platelet-rich plasma injections for non-insertional Achilles tendinopathy. A controlled trial found no differences in pain or function between the two groups at three or six months, though a higher percentage of people in the PRP group reported satisfactory results at the six-month mark.⁶ Given that PRP involves drawing blood, processing it, and injecting it under guidance at considerably higher cost, the fact that dry needling performed similarly on the main outcome measures is worth considering from a practical standpoint.

A meta-analysis comparing dry needling to extracorporeal shockwave therapy across tendinopathy sites found no significant difference in pain scores between the two, either immediately or at follow-up. What was interesting is that combining shockwave therapy with dry needling produced significantly better pain reduction than shockwave alone at follow-up.⁷ This hints that the treatments may work through partially different pathways and could complement each other, though the combined-treatment data is still slim.

A randomized trial specifically on Achilles tendinopathy compared dry needling to percutaneous electrolysis, which uses a needle to deliver a galvanic current into the tendon. Both groups saw statistically significant improvements in pain on the visual analogue scale, pressure pain threshold, quality of life, and functionality starting from the third week, while range of motion stayed unchanged in both groups.⁸ That range-of-motion finding is actually typical across studies. Dry needling appears to reduce pain and improve how people rate their function, but it does not seem to physically change the flexibility of the ankle joint.

Combining Dry Needling with Exercise

Eccentric exercise, where you slowly lower your heel off a step to load the tendon while it lengthens, has been the standard conservative treatment for Achilles tendinopathy for over two decades. The question that matters most practically is whether adding dry needling to an exercise program gives you something extra.

A systematic review looking specifically at this combination found moderate evidence supporting the use of dry needling combined with therapeutic exercises, especially eccentric exercises, for improving pain and function across tendinopathies.⁹ That said, for the Achilles specifically, the story gets murkier. A feasibility study directly testing whether adding trigger-point dry needling to manual therapy and exercise outperformed manual therapy and exercise alone for Achilles tendinopathy found that both groups improved significantly in function, pain, pressure pain threshold, and strength at four weeks and three months, but there were no between-group differences.¹⁰ In other words, adding dry needling did not produce a measurable advantage over a well-structured rehab program for the Achilles.

For rotator cuff tendinopathy, the picture is a bit more encouraging. Eccentric exercises combined with dry needling were more effective than eccentric exercises alone in patients with chronic rotator cuff tendinopathy.¹¹ Whether that benefit carries over to the Achilles is an open question. The rotator cuff and the Achilles have very different loading environments, blood supply profiles, and injury patterns, so it is not safe to assume results transfer between them.

The Placebo Problem

One of the harder questions in dry needling research is whether the needle itself is doing the work, or whether the ritual of the treatment, the focused attention, and the sensation of something happening in the tissue account for the improvement. Designing a convincing placebo for a needle-based treatment is notoriously difficult, because people can usually tell whether they are being stuck with a needle or not.

A sham-controlled trial for chronic midportion Achilles tendinopathy found that blinding was only partially successful. Among those who received the real treatment, about 81% correctly guessed their group, likely because the procedure produces noticeable sensations like a deep ache or twitch response. In the sham group, 67% correctly identified they were receiving a placebo.¹² When participants can guess which group they are in, their expectations can influence how they report pain and function, muddying the results.

Interestingly, a separate study testing a sham dry needling technique on healthy volunteers found that among people who had never experienced dry needling before, only about 6% were able to identify that they received the sham procedure, a rate far below chance.¹³ This suggests that sham needling can fool first-timers effectively, which is useful for designing future trials. But most people seeking dry needling for Achilles tendinopathy are not first-timers. They have often already been through other treatments and may have strong expectations about what the needle should feel like, making real-world blinding harder.

None of this means dry needling is purely placebo. The animal data showing biological changes in tendon tissue argues against that interpretation. But it does mean the clinical trials, especially the unblinded ones, probably overstate the effect size to some degree. The true benefit likely sits somewhere between “as large as the trials report” and “nothing beyond a good placebo.”

Ultrasound Guidance and Technique Variations

Not all dry needling is performed the same way, and the differences matter. In a clinical setting, a practitioner might insert a needle into a myofascial trigger point in the calf, or directly into the thickened, degenerated portion of the Achilles tendon, or into the tissue around the tendon (the paratenon). Some use ultrasound imaging to guide the needle precisely into the affected area, while others rely on palpation and anatomical landmarks.

Ultrasound-guided dry needling combined with percutaneous paratenon decompression, where the needle is used to release adhesions around the tendon, has been reported as a well-tolerated procedure with good short- and long-term pain and functional outcomes in a study on chronic Achilles tendinopathy.¹⁴ The ultrasound guidance allows the clinician to see exactly where the needle is going, which is particularly useful for the Achilles because the degenerated zones are not always in the spot that hurts the most on palpation.

Technique also varies in terms of how the needle is manipulated once inserted. The literature describes methods ranging from rapid in-and-out “pistoning” or “sparrow pecking” movements to leaving the needle in place for a set duration. Most randomized controlled trials have used manual stimulation followed by leaving the needle in position for between 10 and 30 minutes.¹⁵ The optimal approach for Achilles tendinopathy specifically has not been nailed down, and this is one of the reasons that study results are hard to pool together in a meaningful way. Two trials both labeled “dry needling for the Achilles” may be doing quite different things with the needle.

What to Expect if You Try It

If you are considering dry needling for your Achilles, here is a realistic picture of the experience. The practitioner will likely palpate your calf and Achilles to identify tender spots, and in some clinics, they will use an ultrasound probe to visualize the tendon before needling. The needle used is a thin, solid filament, thinner than a standard injection needle, with no medication attached. When it enters the skin you will feel a brief prick, but the more distinctive sensation comes when the needle reaches a trigger point or degenerated tendon tissue. People describe this as a deep ache, cramping, or a quick involuntary twitch in the calf muscle.

Soreness after the session is common and typically lasts 24 to 48 hours. Some people feel improvement within a day or two; others need several sessions before they notice a change. The research does not clearly establish how many sessions you should expect. Across tendinopathy studies, protocols vary from a single session to weekly treatments over six weeks or more. Pain reduction tends to start appearing within the first few weeks. It is reasonable to expect that if dry needling is going to help you, you should see some shift in pain or function within about four to six sessions. If nothing has changed by then, continuing is unlikely to produce a breakthrough.

One practical consideration is that dry needling for the Achilles is typically less expensive per session than PRP injections or shockwave therapy, and more widely available through physical therapists and sports medicine practitioners in most areas. Licensing varies by region, though. In some states and countries, only certain practitioners are legally allowed to perform it, and training standards range from weekend courses to extensive postgraduate certification.

Safety and Risks

Dry needling is generally considered low-risk, especially when performed on an extremity like the lower leg where there is no risk of pneumothorax, the most serious adverse event associated with needling near the thorax. The main risks for the Achilles and calf area include post-treatment soreness, minor bruising, and occasionally a small amount of bleeding at the needle site. Infection is possible but rare when sterile technique is followed. There is a theoretical concern about needle-induced damage to an already weakened tendon, but the animal research mentioned earlier suggests that mild needling causes a temporary reduction in mechanical properties that resolves and may even improve beyond baseline.³ Overly aggressive needling did produce more prolonged changes in that study, however, which is one reason ultrasound guidance and practitioner experience matter.

People on blood thinners should discuss dry needling with their prescribing physician before proceeding, as the risk of bruising and minor bleeding is higher. If you have a known needle phobia or a tendency toward vasovagal responses (feeling faint around needles), that is worth mentioning to the practitioner ahead of time so they can position you safely.

Dry Needling Versus Acupuncture for Tendon Problems

People frequently ask whether dry needling and acupuncture are the same thing, especially since both involve inserting thin needles into the body. The tools are nearly identical, but the frameworks differ. Traditional acupuncture places needles along meridians defined by classical Chinese medicine theory, while dry needling targets anatomical structures like trigger points, muscle bellies, or degenerated tendon tissue based on Western musculoskeletal anatomy. For tendinopathy specifically, the needling techniques studied in the clinical trials are anatomically directed. They aim to create a local tissue response in or near the damaged tendon rather than to influence energy flow along a distant pathway.

That said, some acupuncture research on Achilles and other tendon conditions uses needle placements that overlap with what a dry needling practitioner would choose, particularly when acupuncturists use a “trigger point acupuncture” or “ashi point” approach. From the tendon’s perspective, a needle is a needle regardless of the philosophical framework behind its placement. What seems to matter more than the label is whether the needle reaches the relevant tissue, how it is manipulated once there, and what other treatment accompanies it. If you are choosing between providers, the practical question is whether the practitioner has experience treating tendinopathy and uses anatomically targeted needle placement, not whether their door says “acupuncture” or “dry needling.”

Insertional Versus Midportion Achilles Tendinopathy

The Achilles tendon can break down in two distinct zones, and the distinction matters for treatment decisions. Midportion tendinopathy affects the body of the tendon, typically two to six centimeters above where it attaches to the heel bone. Insertional tendinopathy involves the area where the tendon connects directly to the calcaneus, often accompanied by bony changes like calcification or a Haglund’s deformity. Most of the dry needling research on the Achilles has focused on midportion disease. The insertional variety is mechanically different, and needling close to the bone-tendon junction carries a somewhat different risk profile because the tissue architecture changes at the insertion site and calcification can alter how the needle interacts with the tissue.

If you have insertional Achilles tendinopathy, the evidence for dry needling is thinner, and the treatment approach likely needs to be modified. Eccentric exercise protocols themselves are adapted for insertional disease (typically performed on a flat surface rather than off a step edge), and any needling would similarly need to account for the different anatomy. This is an area where practitioner experience and imaging guidance become more important, and where overgeneralizing from midportion studies could lead you astray.