What Does Dry Needling Do?

If you’re someone that’s been dealing with a stubborn muscle knot that refuses to budge, or a pesky tendonitis that hasn’t responded to traditional treatments like ice, massage, and stretching, you might have come across Dry Needling as a potential treatment that can help. And you might be happy to hear that your sources are correct – Dry Needling is a highly effective treatment option for issues in your muscles or tendons that don’t seem to respond to stretching or other modalities. But before you sign up for your first session, let’s make sure you have a better understanding of what dry needling does and how it works. Most people have heard how Dry Needling targets areas in your body (usually muscles) that are sensitized and restricted.  But what you may not realize is that dry needling affects more than the muscles or tissues alone.  In addition to loosening tight muscles, it also stimulates the nervous system in a way that reduces pain, restores movement, and even helps your muscles engage more effectively to maintain the improvements. At Primal Physical Therapy we use it regularly to reset your recovery timeline and help you move freely again. The results are dramatically faster than what we can achieve with traditional manual techniques like massage or joint mobilizations.

a therapist performing a dry needling at the back of the man with tattoo

What Is Dry Needling Therapy and What Does It Do?

A runner’s calf feels like a coiled spring. A golfer gets a sharp “catch” in their shoulder mid-backswing. These sensations typically stem from myofascial trigger points: hyper-irritable spots in the muscle that cause pain and restrict mobility. Dry needling is a technique where a trained clinician uses a thin, sterile filiform needle to stimulate this irritable tissue. The procedure is “dry” because it involves no medication or injections, and the single-use needles are significantly thinner than those used for blood draws. Unlike acupuncture, which works from energy-pathway principles, dry needling is rooted in Western orthopedic science, which is why we always use movement assessments to target our treatment approach.

This therapy specifically targets:

  • Myofascial trigger points (taut bands or “knots”) and protective muscle guarding.
  • Stimulating the Nervous system (through treatment within the muscle) to restore biomechanics of the entire kinetic chain.
  • Tendon-related pain patterns as part of a broader recovery plan.

What Does Dry Needling Do? Understanding the Reset Mechanism

Many patients imagine a mechanical breakdown during dry needling.  While there is a low level inflammatory response that occurs, the needle actually serves as a catalyst for a physiological reboot that targets three specific areas: muscle tension (length), local tissue chemistry (cellular balance), and nerve signaling (related to pain AND muscle activation).

When a therapist targets a myofascial trigger point, the needle often elicits a local twitch response. This involuntary contraction acts as a reset for the muscle fiber, leading to a rapid drop in protective guarding and tone. While this twitch is a useful clinical indicator, research shows therapeutic benefits can occur even without a visible muscle jump.

Beyond the muscle fiber, the needle creates a micro-stimulus that improves local circulation. Increasing blood flow to oxygen-depleted tissues changes the chemical environment, making the area more available to move and load. This is particularly effective for tendon-related issues, as it primes the tissue to better tolerate the stretching and strengthening exercises that follow.

Dry needling also turns down the nervous system’s alarm system. By providing a controlled stimulus, the brain begins to view movement as less threatening. For athletes, reduced pain and improved range of motion mean better movement quality and a faster return to training. At Primal Physical Therapy, we use dry needling as a precision tool within a full PT plan, incorporating movement assessment and loading strategies, rather than a standalone fix.

What Does Dry Needling Feel Like? Navigating Your Session

Imagine lying on the treatment table, bracing for a sharp poke, and then often not even realizing the needle has been inserted. This happens often during dry needling sessions at Primal. Most patients tolerate the procedure remarkably well, and any discomfort felt throughout the session is quickly forgotten when they feel the results – usually less pain and better movement, almost instantly.

One thing we find makes the experience easier for new patients is making sure they have a good understanding of what to expect during the dry needling session.

The experience typically follows this sensory timeline:

  • The Initial Tap: A thin, sterile needle is inserted. You may feel a minimal prick or nothing at all.
  • Deep Pressure: As the needle reaches the trigger point, you might feel a dull, heavy ache.
  • The Local Twitch: This quick, involuntary contraction feels like a sudden “jump” or a brief, deep cramp.

A twitch is a positive sign that the muscle is reacting and resetting. Your session stays targeted and brief, focusing on specific muscles before re-testing your range of motion. You often feel improved range of motion immediately, and mild soreness for 24 to 48 hours is normal. Learn how this differs from other needle-based treatments in our guide to dry needling vs. acupuncture.

Fitness coach speaking with a client seated on the gym floor during a personal training session.

Dry Needling Aftercare: Managing Soreness and Maximizing Results

Many patients experience muscle soreness that begins within the first hour after treatment, but dissipates anywhere from 5-48 hours after your session. The soreness is a result of the biochemical changes that occur (and are part of its effectiveness) with the treatment and feel very similar to what people might know as Delayed Onset Muscle Soreness (DOMS).  Factors that play into how much soreness you will have include:

  • The intensity of the session.  The dosing of the session will effect the soreness intensity and period of time the soreness lasts.
  • Your level of fitness (athletes who use their muscles regularly will experience less soreness than those who do not exercise regularly) .
  • The area treated (some muscles tend to stay sore longer than others).
  • Your activity level immediately following the session.  The best thing to help dissipate the soreness is movement.  If you end up sitting immediately after the session you will experience more soreness.

To get the most from your session, prioritize hydration and avoid sitting or being stationary for the first few hours after treatment if possible. Athletes that are used to exercising regularly can train at a level they’re accustomed to training at even immediately after a session.  We recommend not to try adding a new level of intensity, load , or volume immediately after a session.

If you are someone that has a needle aversion, Dry needling may not be an appealing treatment. Your PT may suggest alternatives:

  • Cupping: Provides sensory input and short-term tissue tolerance changes.
  • Graston (IASTM): Useful for superficial tissue loading and stiffness.
  • Percussive Therapy: Excellent for self-managed recovery but less targeted for deep trigger points.
  • TECAR therapy

Review the pros and cons of dry needling to decide whether it is the right fit for your recovery plan.

How to Use Dry Needling as a Strategic Recovery Tool

Dry needling acts as a physiological reset button for muscle tension. While it often produces immediate improvements in motion and pain levels, the real value is the window of opportunity it brings. By restoring your body’s ability to move better, , your body becomes primed for the addition of loading and training exercises that address root causes and restore your ability to translate the movement changes into functional ones

Check your fit:

  • Ideal if: You are limited by tightness, mobility restrictions, or pain that is musculoskeletal in nature. Less ideal if: You want a passive fix without follow-up exercise, or your pain is primarily systemic.

Questions worth asking your PT before your session:

  • “Which muscles are you targeting and why?”
  • “What should I do today to lock in this benefit?”
  • “How will we measure progress in mobility and performance?”

Ready to find out if dry needling is right for your recovery? Schedule a one-on-one evaluation at Primal Physical Therapy.

Schedule Your Evaluation

Frequently Asked Questions

Does dry needling hurt?

Most patients don’t feel the needle being inserted, but do often feel a  deep, heavy ache or a brief cramping sensation. While the initial needle entry is often painless due to the thin gauge, the local twitch response can sometimes feel intense. Our therapist will dose the treatment according to your tolerance. If you are uncomfortable at all in the session, your physical therapist can use a lighter technique or fewer needles to keep you comfortable throughout the session.

What is the local twitch response and do I need it for results?

A local twitch response is an involuntary contraction of the muscle fibers that occurs when the needle stimulates a myofascial trigger point. This twitch is a helpful clinical indicator that the target tissue has been reached, but there is therapeutic benefit to needling even without the twitch response. Significant pain relief and improved range of motion can still occur without a visible muscle jump.

How long am I sore after dry needling?

Post-treatment soreness typically lasts up to 24 to 48 hours and feels similar to the muscle ache after a heavy workout. Staying active, and staying hydrated,are the best ways to help the soreness resolve.

How many dry needling sessions do I need?

Many patients notice a positive change in mobility or pain levels within one to three sessions, but durable results usually require a fuller treatment plan. The total number of visits depends on how long you have had the injury, what your overall movement assessment looks like (how many compounding limitations you have in your kinetic chain), and how well you integrate the prescribed loading exercises.

The needle provides a quick reset; the strengthening phase keeps the tension from coming back.

Is dry needling covered by insurance?

Insurance coverage for dry needling varies widely by state and plan. Primal Physical Therapy is an out of network facility, and dry needling sessions are built into the overall treatment plan.  So most patients get reimbursed according to their out of network benefits.

Can dry needling help tendonitis or trigger point pain?

Dry needling is highly effective as an adjunct therapy for trigger point pain and can significantly assist in the recovery of tendonitis. By reducing the muscle tension and guarding that often surrounds a sensitive tendon, the procedure makes immediate improvements in blood flow to the tendon, decreases mechanical load to the tendon, and creates a window where you can perform the necessary strengthening exercises to resolve tendonitis issues. .

Want the full overview of what dry needling is and how it fits into physical therapy? Read our complete dry needling guide.

Dr. JJ Thomas, DPT, MPT, CMTPT

Dr. JJ Thomas is the founder and CEO of Primal Physical Therapy, located in Bryn Mawr, PA. With more than 25 years of hands-on experience, Dr. Thomas is celebrated for reimagining patient care and movement through groundbreaking, system-based methods that deliver real results. Her mastery in advanced manual techniques and functional movement analysis has earned her a reputation as a leading expert—teaching at national conferences, publishing in professional journals, and consulting for elite organizations like the American Physical Therapy Association and the Federation of State Boards of Physical Therapy. She’s passionate about people and helping them reach their maximum potential for health. With this in mind, she is revolutionizing the world’s view on recovery, injury, and longevity. She does this by harnessing foundational “Primal” movements encoded in our DNA—often lost to compensations from injury or daily routines. Her passion and purpose is helping people of every background reclaim their natural ability to move well and thrive. Dr. Thomas’s work extends far beyond her studio: she has guided elite athletes from the NBA, NFL, UFC, US Field Hockey, US Lacrosse, and US Track and Field, even traveling alongside competitors at the 2024 Paris Olympics. Her innovative expertise is also sought after by NFL teams whose medical staff she trains in advanced techniques like dry needling. Whether you’re an athlete, healthcare professional, or simply passionate about wellness, Dr. Thomas’s approach and insights promise a transformative perspective on movement and recovery.
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