Dry Needling, Demystified

Trigger Point Acupuncture for Muscle and Movement Pain

Edd Lee, L.Ac., LMT, MSOM  •  Manhattan Sports Acupuncture  •  On Point
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If a trainer, physical therapist, or doctor has sent you for “dry needling,” or you’ve simply stumbled on the term while hunting for relief from a knot that won’t quit, you probably have two questions: what is it, and is it right for my pain? Let me clear a few things up — honestly, and with the research to back it.

It Starts With Chinese Medicine
Think of it as a set of nested circles. The outer circle is Traditional Chinese Medicine, a complete system of medicine. Inside it sits acupuncture, one of its core therapies. And inside acupuncture sits dry needling — also called trigger point or orthopedic acupuncture — the branch that concentrates on muscle and movement. Just as other acupuncturists specialize in fertility, facial rejuvenation, or women’s health, this is simply the area of focus that lives in the muscles. Same medicine, same needles, different specialty.

The Real Goal: Rebalancing Work and Rest
A healthy muscle moves fluidly between two states: it contracts when you ask it to work, and it fully releases when you don’t. The point of dry needling is to restore that rhythm in a muscle that has lost it. In the language of Chinese medicine, that’s the balance between yang — activity and contraction — and yin — rest and recovery. A muscle stuck in a low‑grade, never‑quite‑releasing contraction has lost its yin. Needling helps reset the balance so the tissue can let go again.

Why You Hear “Dry Needling” Instead of “Acupuncture”
Here’s where I’ll be candid, because patients ask me this constantly. Acupuncturists have needled tender muscle knots for over two thousand years — the classics call them ashi (literally “ouch”) points, and surveys estimate that the large majority of trigger points map directly onto known acupuncture points. So why the new name? The term “dry needling” gained traction largely so practitioners outside the acupuncture profession — many physical therapists, chiropractors, and some physicians — could use acupuncture needles without completing the thousands of hours of training that acupuncture licensure requires. Framing it as a separate, purely “Western,” anatomy‑only technique made that easier, legally and professionally. (Worth knowing: here in New York, this kind of needling is largely reserved for licensed acupuncturists.) The needle doesn’t know the difference; it’s the same tool used toward the same end. Plenty of non‑acupuncturists needle safely — but when someone is putting a needle in you, it’s fair to ask how many hours they’ve trained to do exactly that.

What a Trigger Point Actually Is
A myofascial trigger point is a hyperirritable spot within a taut band of muscle — the “knot” you can feel under your fingers. They form when a muscle is overloaded: repetitive strain, sustained posture (hello, desk and phone), acute injury, or simply guarding an area that already hurts. The leading explanation, the “energy crisis” model, goes like this: a small patch of fibers stays contracted, squeezing shut its own blood supply. Starved of oxygen and unable to flush out waste, the spot becomes a self‑feeding loop of tightness and irritation. Trigger points come in two flavors — active ones that hurt on their own, and latent ones that only complain when pressed — and both are famous for referred pain, sending ache to a spot far from the source. That’s a big reason muscle pain can be so maddening to chase. (Fair disclosure: the trigger‑point model has its scientific critics and palpation isn’t perfectly reliable, but it remains the most useful working framework we have.)

How the Needle Works
A fine filiform needle placed precisely into the knot often produces a quick, involuntary muscle twitch — the local twitch response. That twitch is the goal. Microdialysis studies by Shah and colleagues found that active trigger points are chemically hostile little neighborhoods, rich in pain‑sensitizing substances like substance P and CGRP; after a twitch response, those concentrations drop sharply and the tissue chemistry begins to normalize. Needling also increases local blood flow (one study measured a 72% jump), prompts the nervous system to release its own pain‑dampening endorphins, and helps quiet both local and central pain signaling. The net effect, when it works, is a muscle that can finally relax — restoring length, easing pain, and freeing up how the joint moves.

What to Expect: The Process and the Feel
First we talk and assess — where it hurts, how you move, and which muscles are actually driving the problem (remember, pain refers, so the culprit isn’t always where you feel it). I locate the taut band by hand, clean the skin, and insert a hair‑thin needle. Because these needles are far thinner than the hollow ones used for shots, the insertion itself is usually barely felt. You may notice a brief cramp or deep ache and that twitch — most patients describe it as a satisfying “that’s the spot” sensation rather than sharp pain. Afterward, mild soreness or fatigue in the area for a day or two is normal — much like the day after a good workout. Heat, water, and gentle movement help.

Is It Safe?
For the right person in trained hands, yes. The common side effects are minor and short‑lived: bruising, a little bleeding, post‑needling soreness, and occasionally lightheadedness or temporary fatigue. Large prospective surveys bear this out — minor events show up in roughly one in five sessions, while serious complications are rare, on the order of well under 0.1% of treatments. The serious risks that do exist — most notably pneumothorax (a punctured lung) from needling too deeply near the chest, ribs, or upper back — are precisely why depth of anatomical training matters so much. Tell your practitioner about bleeding disorders, blood thinners, pregnancy, or needle anxiety before you start.

What the Evidence Says
I’m an evidence‑based practitioner, so here’s the honest picture rather than the sales pitch. Across numerous systematic reviews and meta‑analyses, dry needling produces real, meaningful short‑term reductions in pain and improvements in function for myofascial pain — best documented in the neck, shoulder, and low back. In neck‑pain trials it has outperformed sham and placebo for both pain and disability, and roughly matched or modestly exceeded hands‑on manual therapy. Head‑to‑head, it performs comparably to trigger‑point injections for myofascial pain. Where the evidence is thinner is the long term: we have fewer large, high‑quality studies tracking results months out, the trials vary in quality, and the most durable results consistently come when needling is paired with exercise, stretching, and a proper rehab plan rather than used on its own. In short: a genuinely powerful tool, not a standalone miracle.

The Bottom Line
Dry needling is acupuncture aimed squarely at your muscles — a direct way to coax a stuck muscle back into its natural rhythm of work and rest. For the right musculoskeletal problem, in well‑trained hands, it’s one of the most efficient ways I know to release a knot that simply won’t let go. If you’re wrestling with a nagging muscle issue, reach out — I’m always glad to tell you honestly whether it’s a good fit for what you’re feeling.

Selected References

• Navarro‑Santana MJ, et al. Dry needling for trigger points in neck pain. J Clin Med, 2020.
• Hernández‑Secorún M, et al. Dry needling in chronic neck pain: review & meta‑analysis. 2023.
• Gattie E, et al. Trigger point dry needling for musculoskeletal conditions by physical therapists. JOSPT, 2017.
• Shah JP, et al. Biochemicals associated with pain and inflammation in active trigger points. 2005 / 2008.
• Boyce D, et al. Adverse events associated with therapeutic dry needling. IJSPT, 2020.
• American Society of Acupuncturists. The Relationship Between Acupuncture & Dry Needling.