How Does Acupuncture Work? The Science Behind the Needles
If you've ever wondered whether acupuncture is backed by science or just an ancient myth, you're not alone. Here's what the research actually says — and why it might be the missing piece in your pain treatment.
What Is Acupuncture?
Acupuncture is a treatment that involves inserting very fine, sterile needles into specific points on the body. It has roots in traditional Chinese medicine dating back thousands of years, but in modern physiotherapy practice it's used as an evidence-informed tool to help manage pain, reduce muscle tension, and support recovery.
At JN Physiotherapy in Birmingham, acupuncture is used alongside hands-on physiotherapy — not as a replacement for it, but as part of a tailored treatment plan when it's clinically appropriate.
How Does Acupuncture Actually Work?
There are two main ways to understand how acupuncture works: the traditional explanation and the scientific one. In modern physiotherapy, we focus on the science.
1. It Stimulates the Nervous System
When an acupuncture needle is inserted, it stimulates sensory nerves under the skin and in the muscles. This sends signals to the brain and spinal cord, triggering the release of natural pain-relieving chemicals — including endorphins and serotonin. This is why many people feel a genuine sense of relief or relaxation during and after treatment.
2. It Reduces Muscle Tension
Acupuncture needles can be placed directly into tight, overactive muscle tissue — often called trigger points. This causes the muscle to twitch and then relax, releasing tension that may have been contributing to pain for weeks or months. If you've ever had a knot in your neck or persistent tightness in your lower back, this kind of treatment can provide relief that stretching alone simply doesn't achieve.
3. It Modulates Pain Signals
Research suggests acupuncture can help "gate" pain signals — essentially turning down the volume on how intensely your nervous system is perceiving pain. This is particularly relevant for people with chronic or persistent pain, where the nervous system has become sensitised over time.
4. It Promotes Local Healing
Inserting a needle into tissue causes a very minor, controlled microtrauma. The body responds by increasing local blood flow and sending healing resources to the area. This can support tissue repair in conditions like tendinopathy or muscle strain.
What Does the Research Say?
Acupuncture is one of the most studied complementary therapies in the world. A large body of research — including systematic reviews and randomised controlled trials — supports its use for:
Chronic low back pain — recommended by NICE (National Institute for Health and Care Excellence) as a treatment option
Neck pain and headaches — strong evidence for reducing frequency and intensity
Knee osteoarthritis — shown to reduce pain and improve function
Shoulder pain — useful when combined with exercise and manual therapy
Muscle tension and trigger points — well-supported for releasing tight, painful muscles
It's worth noting that acupuncture works best as part of a broader treatment plan — combined with exercise, manual therapy, and lifestyle advice — rather than as a standalone fix.
What Does Acupuncture Feel Like?
This is the question most people ask before their first session. The needles used are extremely fine — much thinner than a standard injection needle — and most people describe the sensation as a mild dull ache, tingling, or warmth around the needle site. It's rarely painful.
Many patients are surprised by how relaxed they feel during treatment. It's common to feel a little drowsy afterwards, so it's worth planning a calm hour or two after your session.
Is Acupuncture Right for You?
Acupuncture isn't suitable for everyone, and a thorough assessment is always carried out before it's used. It tends to work well for people who:
Have persistent muscle tension or trigger points that aren't responding to other treatment
Experience chronic or recurring pain (back, neck, shoulder, headaches)
Want to complement their physiotherapy rehab with additional pain relief
Have tried other approaches without getting the results they hoped for
If you're unsure whether acupuncture would help your specific situation, the best first step is a physiotherapy assessment — where the cause of your pain is properly identified and a treatment plan is built around you.
Acupuncture at JN Physiotherapy, Birmingham
At JN Physiotherapy, acupuncture is offered as part of a one-to-one treatment session — never rushed, always tailored to you. Joel is a senior musculoskeletal physiotherapist with NHS experience, trained in both Western medical acupuncture and dry needling techniques.
Appointments are available in the evenings and at weekends at our Birmingham City Centre clinic (B1 1WH), making it easy to fit treatment around work and life.
Ready to find out if acupuncture could help you? Book your physiotherapy assessment online or call 07873948942.
JN Physiotherapy offers physiotherapy, acupuncture, sports massage and cupping in Birmingham City Centre. Evening and weekend appointments available.