Acupuncture vs. Dry Needling — What's Actually the Difference?

If you've ever had dry needling done by a physical therapist and thought "wait, isn't this just acupuncture?" — you're not alone. The two modalities look nearly identical from the outside: a thin filiform needle, inserted into soft tissue, with the goal of reducing pain. But the similarities are mostly surface level. The training, philosophy, point selection rationale, and regulatory framework behind each are meaningfully different. This post isn't here to argue that one is better than the other. It's here to explain what each actually is, so you can make an informed decision about which might be right for you.

Acupuncture: Roots in Traditional Chinese Medicine Acupuncture is one of the oldest medical practices in the world, with documented use in China spanning thousands of years. Its foundation is rooted in traditional Chinese medicine (TCM), which frames health through the concept of qi — an energy or life force that flows through the body along specific pathways called meridians. In traditional theory, illness and pain arise when that flow is disrupted, and the insertion of needles at specific acupuncture points along the meridians is intended to restore balance and harmony to the system. The experience of needling in traditional acupuncture is often associated with a phenomenon called de qi — a distinctive sensation of heaviness, aching, or tingling at the needle site that is considered in TCM to be a sign of effective point activation. Interestingly, modern researchers have started trying to measure and quantify de qi rather than just describe it qualitatively, treating it as a potentially useful clinical variable rather than just a philosophical concept (Kong et al., 2007. https://doi.org/10.1089/acm.2007.0524). So what's actually happening in your body when an acupuncture needle goes in? Researchers have been working on that question for decades, and the honest answer is: it's complicated, and the full picture isn't settled yet. What we do know is that acupuncture appears to trigger a cascade of responses in both the peripheral and central nervous system — including the release of the body's own natural pain-relieving compounds (endorphins and related peptides), changes in how pain signals are processed in the spinal cord and brain, and effects on immune cells near the needle site. Based on articles retrieved from PubMed, a 2023 review published in Molecular Pain mapped out multiple pathways through which acupuncture appears to reduce inflammatory pain — from the nerve endings in the tissue all the way up to the brain's pain-processing centers (Zhang et al., 2023. https://doi.org/10.1177/17448069231202882). It's a lot of biological machinery moving at once, which may be part of why acupuncture seems to work for some people in ways that are genuinely hard to pin down to a single mechanism. Acupuncture is practiced by licensed acupuncturists (LAc), and in most states requires a separate graduate-level degree program — typically a Master of Science in Oriental Medicine or Traditional Chinese Medicine, often three to four years in length. Some physicians and other licensed providers also receive training in medical acupuncture, which focuses on Western anatomical frameworks rather than TCM philosophy.

Dry Needling: A Physical Therapy Tool Dry needling is a newer addition to the physical therapy toolkit — but newer doesn't mean less rigorous. To understand where it fits, it helps to understand what physical therapists actually train in first. Physical therapists in the United States complete a Doctor of Physical Therapy (DPT) degree — a three-year clinical doctorate that covers the entire human body. Every system. Every joint. Neurological function, cardiovascular physiology, orthopedics, pediatrics, chronic pain science, and the biomechanics of how it all moves together. By graduation, a PT has completed thousands of hours of clinical training across multiple patient populations and settings. The credential is a doctoral-level clinical degree, not a certification. Within that foundation, dry needling is taught and practiced as a specialized skill targeting the musculoskeletal system. In Washington State specifically, performing dry needling isn't simply something a PT can add on after a weekend course — it requires a formal endorsement from the state. To obtain that endorsement, a PT must complete documented post-graduate training that meets Washington's specific requirements and submit for approval before they can legally perform the technique on patients. It's a regulated, credential-verified skill layer on top of an already rigorous doctoral education. The theoretical basis for dry needling sits within a neurophysiological and anatomical framework. Most protocols target what are called myofascial trigger points — hyperirritable spots within a taut band of muscle that cause local pain, referred pain to other areas, and reduced range of motion. If you've ever had a knot in your shoulder that sent pain radiating up your neck, you've experienced a trigger point. The needle inserted into that spot is intended to produce what's called a local twitch response — a brief involuntary contraction of the muscle — which appears to disrupt the abnormal electrical activity sustaining the trigger point and allow the tissue to reset. Based on articles retrieved from PubMed, the research on dry needling across musculoskeletal conditions is growing. A randomized controlled trial in overhead athletes with shoulder impingement found significant reductions in pain and disability from dry needling, regardless of which specific muscle was targeted — suggesting the treatment works through a broader neurophysiological mechanism, not just precise anatomical placement (Kamali et al., 2018. https://doi.org/10.1123/jsr.2017-0207). A separate trial comparing dry needling to steroid injection for plantar fasciitis found that while steroid injection worked faster in the short term, dry needling produced better outcomes at the 12-month mark — which matters for people who want lasting results, not just temporary relief (Rastegar et al., 2017. https://doi.org/10.1007/s00264-017-3681-1). Dry needling is also being studied in post-surgical rehabilitation contexts, where trigger points commonly develop in surrounding musculature following tissue trauma — and early protocol work suggests it may be a useful addition to standard multimodal rehab (Naseri et al., 2023. https://doi.org/10.1186/s12891-023-06269-1). In physical therapy practice, dry needling is almost always used as one piece of a larger treatment picture — not a standalone fix, but a tool that can accelerate what manual therapy, therapeutic exercise, and patient education are working toward. Where They Overlap — And Where They Don't Both acupuncture and dry needling use the same type of thin, filiform needle. Both can produce a local tissue response that appears to modulate pain. Both have clinical evidence supporting their use in musculoskeletal pain conditions. Where they diverge is in the theoretical framework guiding where needles are placed, why, and what outcome is being targeted. Acupuncture point selection is guided by TCM meridian theory, symptom presentation, and in many cases, constitutional and systemic health considerations that extend well beyond the site of pain. Dry needling point selection is guided by palpation of myofascial trigger points and anatomical referral patterns within the musculoskeletal system. It is worth noting that the ongoing debate in the research community about whether acupuncture points and trigger points represent the same or overlapping anatomical structures has not been definitively resolved. Some researchers have argued for significant anatomical overlap between the two systems; others maintain that the conceptual frameworks are distinct enough that direct comparison is not meaningful. What This Means for You If you're trying to decide which is right for your situation, the most important factors are who you're working with and what their training covers, and what your goals are. A physical therapist using dry needling is doing so as one tool within a broader neuromuscular and biomechanical framework. A licensed acupuncturist may be approaching your complaint systemically, through a different but equally rigorous lens. Localized musculoskeletal pain with identifiable trigger points is a common use case for dry needling. Systemic complaints, chronic illness with multiple overlapping presentations, or a preference for a whole-body energetic framework may lead a patient toward acupuncture. Neither approach is a substitute for the other, and for many patients, both have a place within a comprehensive care team. Dr. Kinsey Winter, DPT, SMT, COMT, CSCS, CDNS is the owner of Flourish Physical Therapy in Bellevue, WA, specializing in performing artists, EDS and hypermobility, and complex chronic pain. She is a Certified Dry Needling Specialist (CDNS) and uses dry needling as one component of individualized, 1-on-1 physical therapy care. As always — I'm a PT, but I'm not your PT. This post is for educational purposes only. References (Based on articles retrieved from PubMed) Kamali, F. et al. (2018). Comparison of Upper Trapezius and Infraspinatus Myofascial Trigger Point Therapy by Dry Needling in Overhead Athletes With Unilateral Shoulder Impingement Syndrome. Journal of Sport Rehabilitation. https://doi.org/10.1123/jsr.2017-0207 Kong, J. et al. (2007). Acupuncture de qi, from qualitative history to quantitative measurement. Journal of Alternative and Complementary Medicine. https://doi.org/10.1089/acm.2007.0524 Naseri, F. et al. (2023). Dry needling in a multimodal rehabilitation protocol following rotator cuff repair surgery. BMC Musculoskeletal Disorders. https://doi.org/10.1186/s12891-023-06269-1 Rastegar, S. et al. (2017). Comparison of dry needling and steroid injection in the treatment of plantar fasciitis. International Orthopaedics. https://doi.org/10.1007/s00264-017-3681-1 Zhang, Q. et al. (2023). Mechanisms of acupuncture-electroacupuncture on inflammatory pain. Molecular Pain. https://doi.org/10.1177/17448069231202882