Acupuncture shows genuine promise for several types of tendonitis, though the strength of evidence depends heavily on which tendon is involved. For tennis elbow and Achilles tendinopathy, multiple trials and systematic reviews point toward meaningful short-term pain relief and functional improvement. For shoulder tendinitis and less-studied conditions like patellar tendinitis, the picture is murkier. The research is real, but it comes with caveats worth understanding before you book a session.
What the Broader Evidence Says
A systematic review of acupuncture for musculoskeletal disorders of the extremities, looking specifically at studies with low risk of bias, found that traditional needle acupuncture was superior to exercise for Achilles tendinopathy and superior to oral steroids for carpal tunnel syndrome. However, results were inconclusive for shoulder pain and showed no important benefit over placebo for nonspecific upper-extremity pain or patellofemoral pain.1PubMed. Effectiveness of Acupuncture Therapies to Manage Musculoskeletal Disorders of the Extremities: A Systematic Review That pattern, where acupuncture clearly helps some tendon conditions and barely registers for others, runs through most of the literature.
A separate systematic review focused on foot and ankle conditions found low-quality but consistent evidence that acupuncture relieved pain and improved function in people with Achilles tendinopathy at both short- and intermediate-term follow-ups.2PubMed Central. The Efficacy of Acupuncture on Foot and Ankle for Pain Intensity, Functional Status, and General Quality of Life in Adults: A Systematic Review The qualification “low-quality evidence” does not mean the results are wrong. It means the trials were small, the methods varied, and there were not enough of them to be fully confident. That is a recurring theme in acupuncture research generally, and tendonitis research specifically.
Tennis Elbow Has the Strongest Evidence
If you have lateral epicondylitis, commonly called tennis elbow, the acupuncture evidence is more encouraging than for any other tendon problem. A systematic review and meta-analysis of randomized controlled trials found that acupuncture outperformed sham acupuncture, medication, and corticosteroid injection therapy across measures of both clinical improvement and pain scores.3PubMed Central. Effectiveness of Acupuncture for Lateral Epicondylitis: A Systematic Review and Meta-Analysis of Randomized Controlled Trials An earlier systematic review of six studies, all rated high quality, similarly concluded there was strong evidence that acupuncture provides effective short-term pain relief for lateral epicondyle pain, with one study suggesting benefits lasting up to a year.4Rheumatology. Acupuncture for the alleviation of lateral epicondyle pain: a systematic review
The word “short-term” comes up often. A Cochrane-level assessment cited in a health technology overview noted that while needle acupuncture showed short-term pain benefits for lateral elbow pain, no benefit lasting more than 24 hours after treatment had been demonstrated in the two small trials the review was based on.5Health Technology Assessment. What is the clinical effectiveness and cost-effectiveness of conservative interventions for tendinopathy? That is a more cautious reading of the same body of literature. The discrepancy reflects how different reviewers weigh the same small trials, and it is an honest tension in the evidence rather than a settled argument.
One randomized trial directly compared a needle-based technique (acupotomy, a form of acupuncture-derived minor surgery) against corticosteroid injections in tennis elbow patients. By 24 and 48 weeks, the acupotomy group fared substantially better: about 82 percent were completely free of pain at 24 weeks, compared to roughly half in the steroid group. There were no recurrences in the acupotomy group by six months.6PubMed Central. Comparison between acupotomy and corticosteroid injection for patients diagnosed with different classifications of tennis elbow: a randomized control trial Acupotomy involves a broader blade-type needle and is not identical to traditional acupuncture, but the results are relevant to anyone weighing needle-based therapies against steroid shots.
Achilles Tendinopathy
For chronic Achilles tendon pain, the evidence is moderately positive. A randomized controlled study of 64 patients with chronic Achilles tendinopathy found that after eight weeks, the acupuncture group’s functional scores improved by about 18 points more than the control group’s. That gap persisted through 16 and 24 weeks of follow-up, with both groups improving over time but the acupuncture group consistently ahead.7PubMed. Acupuncture for chronic Achilles tendnopathy: a randomized controlled study Those functional improvements are meaningful in clinical terms, representing the difference between limping through daily activities and returning to something closer to normal.
Not every Achilles trial tells the same story, though. A randomized controlled trial testing electroacupuncture as an add-on to standard care for insertional Achilles tendinopathy (where the tendon meets the heel bone, rather than the mid-portion) found no significant difference in functional improvement between the groups receiving electroacupuncture and those who did not.8PubMed Central. Treatment of Insertional Achilles Tendinopathy Using Adjunct Electroacupuncture Therapy: A Randomized Controlled Trial The location of the tendon problem seems to matter. Mid-portion Achilles tendinopathy, the more common type, appears more responsive to acupuncture than the insertional variety.
A 2025 systematic review and meta-analysis on Achilles tendinopathy found that electroacupuncture was more effective than physical therapy alone for reducing ankle pain, but the results were ambiguous when compared to conventional acupuncture, combined physical therapy, or sham acupuncture.9Journal of Korean Medicine Rehabilitation. The Effectiveness of Acupuncture Therapy for Achilles Tendinopathy: A Systematic Review and Meta-Analysis Combining acupuncture with eccentric loading exercises, the standard rehabilitation approach for Achilles problems, is one combination that case-study evidence supports as potentially effective.10Nigerian Journal of Medical Rehabilitation. Effectiveness of acupuncture treatment and eccentric overloading exercises for chronic Achilles tendinopathy- A case study
Shoulder Tendinitis and Impingement
Shoulder tendinitis, particularly rotator cuff tendinitis and shoulder impingement, is where the evidence gets more complicated. The large systematic review of musculoskeletal acupuncture noted that results for shoulder pain were inconclusive, though including higher-risk-of-bias studies tilted the balance toward a positive effect.1PubMed. Effectiveness of Acupuncture Therapies to Manage Musculoskeletal Disorders of the Extremities: A Systematic Review
Individual trials have been more encouraging. A randomized controlled trial of acupuncture for shoulder impingement syndrome found significant differences in pain reduction between the real-acupuncture and sham-acupuncture groups, with the treatment group experiencing roughly double the pain decrease on a visual scale at early follow-up and roughly four times the decrease at later follow-up. Functional assessment of the shoulder also favored real acupuncture.11PubMed. Acupuncture treatment of shoulder impingement syndrome: A randomized controlled trial Another trial using a well-designed placebo needle in athletes with rotator cuff tendinitis found the acupuncture group improved more than the placebo group, with the difference reaching statistical significance. The authors used that result to argue that needling itself, not just the therapeutic setting, is an active component of acupuncture’s benefit.12PubMed. Randomised clinical trial comparing the effects of acupuncture and a newly designed placebo needle in rotator cuff tendinitis
A systematic review of clinical practice guidelines for chronic musculoskeletal pain found that shoulder pain was the condition for which acupuncture received the most favorable clinical recommendations, with 13 out of 35 recommendations addressing shoulder pain specifically. Two of those were strong recommendations in favor of acupuncture.13PubMed Central. Systematic review of clinical practice guidelines on acupuncture for chronic musculoskeletal pain So while the trial evidence for shoulder tendinitis is not as clean as it is for tennis elbow, guideline bodies have still recognized enough signal to make positive recommendations.
Less-Studied Conditions
For De Quervain’s tenosynovitis, a painful condition affecting the tendons on the thumb side of the wrist, one randomized trial compared acupuncture directly to corticosteroid injection. Both groups improved in pain and function. The success rate was somewhat higher with steroid injection, but the researchers concluded acupuncture could be considered an alternative treatment option.14PubMed. Efficacy of acupuncture versus local methylprednisolone acetate injection in De Quervain’s tenosynovitis: a randomized controlled trial That framing, “alternative option” rather than “first-line treatment,” is probably the right way to think about acupuncture for conditions with thinner evidence.
Patellar tendinitis (jumper’s knee) has very little controlled trial data. One study of electroacupuncture in 58 patients with stage-three patellar tendinitis reported that about three-quarters achieved complete pain relief and returned to their previous activity level.15Acta Fisiátrica. Tratamento e follow-up da tendinite patelar (jumper’s knee) com eletroacupuntura Ryodoraku Those numbers are striking, but without a control group or blinding, they cannot separate the acupuncture effect from natural recovery and placebo.
How Acupuncture Might Actually Help Tendons
The biological story is more interesting than you might expect. Tendons have notoriously poor blood supply, which is a major reason they heal slowly. Research has shown that acupuncture of the tendon itself increases blood volume and oxygen saturation in the treated tendon during and after treatment.16PubMed Central. Changes in Blood Circulation of the Tendons and Heart Rate Variability During and After Acupuncture A follow-up study confirmed that blood volume increased in both the treated tendon and the opposite untreated tendon after acupuncture, suggesting both a local and a systemic circulatory response.17PubMed Central. Effects of acupuncture and acupressure of the acupoint compared to the tendon on the blood circulation of human tendon in vivo More blood flow means more delivery of oxygen and nutrients to tissue that is normally starved of both.
Beyond blood flow, there is evidence from animal studies that electroacupuncture directly influences tendon repair at the cellular level. In rats with severed Achilles tendons, electroacupuncture increased the concentration and organization of collagen fibers, the structural protein that gives tendons their strength.18PubMed. Electroacupuncture increases the concentration and organization of collagen in a tendon healing model in rats Another rat study found that electroacupuncture increased the diameter and improved the reorganization of collagen fibrils during healing, with the timing of treatment affecting the result: manual acupuncture appeared to help collagen organization for up to 21 days, while electroacupuncture was most effective up to about 14 days.19PubMed. Acupuncture increases the diameter and reorganisation of collagen fibrils during rat tendon healing A third rat study showed that electroacupuncture-treated tendons had higher cell counts, stronger expression of growth factors involved in tissue repair, and significantly greater breaking strength than untreated tendons.20PubMed. The effect of electroacupuncture on tendon repair in a rat Achilles tendon rupture model
Then there is the pain-relief side. Electroacupuncture triggers the release of the body’s own opioid-like chemicals, including enkephalin and beta-endorphin, with different stimulation frequencies releasing different combinations.21PubMed. Acupuncture and endorphins These chemicals dampen pain signals at multiple levels, from the peripheral nerve endings at the tendon all the way up through the spinal cord to the brain. Electroacupuncture also reduces pro-inflammatory cytokines, the chemical messengers that drive the chronic inflammatory cycle in tendinopathy.22PubMed Central. Mechanisms of acupuncture-electroacupuncture on persistent pain So the mechanism is not just “it distracts you from the pain.” There appear to be genuine tissue-level and neurochemical changes happening.
Manual Acupuncture Versus Electroacupuncture
One question that comes up often is whether adding electrical stimulation to the needles makes a difference. For tennis elbow, one study found that after six treatments over two weeks, electroacupuncture was superior to manual acupuncture for both pain relief and grip strength.23PubMed. Comparison of the effectiveness between manual acupuncture and electro-acupuncture on patients with tennis elbow But another experimental study comparing the two in people with lateral elbow pain found no difference at any time point.24PubMed Central. Temporal divergence of changes in pain and pain-free grip strength after manual acupuncture or electroacupuncture
A systematic review and meta-analysis trying to sort this out found something unexpected: manual acupuncture showed a moderate effect on elbow pain reduction compared to control groups, while electroacupuncture did not reach statistical significance. Manual acupuncture also showed a small but significant improvement in grip strength, while electroacupuncture again fell short.25PubMed. Effects of manual acupuncture and electroacupuncture for lateral epicondylalgia of musculoskeletal origin: a systematic review and meta-analysis That result runs counter to the assumption that more stimulation is always better. The answer may depend on the specific condition, the stimulation parameters, and even the individual patient. For now, neither form has been clearly proven superior across all tendon conditions.
Acupuncture Versus Dry Needling
If your physiotherapist offers dry needling for your tendinitis, you might wonder whether that is essentially the same thing. The two techniques do overlap considerably in their application: both involve inserting thin needles into tissue, and both can target trigger points or areas of pain. A cross-discipline narrative review noted that acupuncture and dry needling techniques are similar in their applications, though acupuncture includes additional methods like warm needling that dry needling does not use. The review also observed that translational difficulties between the two disciplines have limited cross-learning.26PubMed Central. Comparative Techniques of Acupuncture and Dry Needling Intersecting with Trigger Point Physiology and Diagnostics: A Cross-Discipline Narrative Review The philosophical frameworks differ considerably: traditional acupuncture works within a system of meridians and energy flow, while dry needling targets anatomical structures based on Western anatomy. But when a needle enters tissue and produces a local response, the mechanical and neurological effects are likely similar regardless of which tradition the practitioner trained in.
The Blinding Problem
The biggest methodological headache in acupuncture research is creating a convincing placebo. You cannot easily trick someone into thinking they are getting a needle stuck in their body when they are not. This matters because tendon pain is partly subjective, and the ritual of treatment, the attention from a practitioner, the expectation of improvement, can produce real changes in how someone experiences pain.
One clever trial for Achilles tendinopathy used sham needling as a control and then checked whether participants could tell which group they were in. Most had difficulty guessing. In the real-treatment group, 81 percent correctly identified that they had received the actual intervention, likely because needling into the tendon produces distinctive sensations. In the sham group, 67 percent guessed correctly. The researchers described the blinding as only partially successful.27PLoS ONE. Intramuscular stimulation vs sham needling for the treatment of chronic midportion Achilles tendinopathy: A randomized controlled clinical trial This is a problem for the field overall. If participants can often feel whether they got real treatment, the placebo control is imperfect, and separating the specific needle effect from the broader treatment experience becomes harder.
The rotator cuff trial mentioned earlier tackled this by designing a new placebo needle that felt convincing to patients, and it still found a significant advantage for real acupuncture over sham.12PubMed. Randomised clinical trial comparing the effects of acupuncture and a newly designed placebo needle in rotator cuff tendinitis Studies like that are more convincing precisely because they attempted to solve the blinding problem. But they remain the exception rather than the rule.
Using Ultrasound to Guide and Track Treatment
A recent development involves using ultrasound imaging to both guide needle placement and monitor treatment response. A case report on chronic Achilles tendinopathy used a four-stage ultrasound-guided acupuncture strategy tailored to the pathological phase of the tendon. After treatment, color Doppler ultrasound showed reduced abnormal blood vessel growth within the tendon, a hallmark of chronic tendinopathy. Tendon thickness and calcific deposits did not change significantly, but the reduction in neovascularization correlated with symptom improvement.28The Journal of Korean Medicine. A Pathophysiology-Based Four-Stage Ultrasound-Guided Acupuncture Strategy for Chronic Achilles Tendinopathy: A Case Report This is only a single case, but the approach is interesting because it offers an objective way to track what the treatment is doing to the tendon tissue, rather than relying solely on pain reports.
Electroacupuncture case reports have similarly documented symptomatic improvement when needles are inserted directly into the tendon with electrical stimulation, a technique that goes beyond traditional acupoint selection and targets the injured tissue itself.29PubMed Central. Successful Treatment of Achilles Tendinopathy with Electroacupuncture: Two Cases Whether this direct-tendon approach is more effective than traditional point-based acupuncture is an open question that trials have not yet resolved.
Where Clinical Guidelines Stand
Professional guidelines on acupuncture for musculoskeletal pain have not reached consensus, and the picture is complicated by the fact that most guidelines address pain broadly rather than tendonitis specifically. A 2025 systematic review of clinical practice guidelines found that 60 percent of the clinical recommendations it examined either advised or suggested using acupuncture, primarily for shoulder pain, low back pain, neck pain, and knee osteoarthritis. Six of the 35 recommendations actively advised against acupuncture, creating a situation where different guidelines directly contradicted each other for the same conditions.13PubMed Central. Systematic review of clinical practice guidelines on acupuncture for chronic musculoskeletal pain Only two recommendations were rated as “strong” in favor, both for shoulder pain.
The practical takeaway is that if you are dealing with chronic tendon pain that has not responded well to rest, physical therapy, or anti-inflammatory medication, acupuncture is a reasonable addition to your treatment plan rather than a replacement for it. The evidence is strongest for tennis elbow, moderate for Achilles tendinopathy and shoulder tendinitis, and thin for other tendon conditions. The risks are low: serious adverse effects from acupuncture performed by a licensed practitioner are rare, and none of the tendonitis trials reported significant safety concerns. Whether the benefits you experience come from specific needle effects, enhanced blood flow, endorphin release, the therapeutic setting, or some combination of all of these may be an academic question if the outcome is less pain and better function.