What We Are Actually Doing With the Needles

How an acupuncturist thinks about pain, and what we are trying to change with a few thin needles.

You may have heard some strange-sounding acupuncture stories.

A needle in the hand for a back that has just seized up. A needle in the foot for a headache, ringing ears, or nights spent staring at the ceiling.

From where we sit, these are familiar conversations. Ordinary Tuesday work.

They can sound strange because of an assumption many of us carry without noticing: if something hurts here, surely you treat here. Sometimes, though, the problem is hidden in the body’s signalling pathways — a little like a fault in the Meridians that carry messages through the body.

The sore area matters, but we also consider how you move, what changes your symptoms, and what else is happening in your life. People seek acupuncture for many reasons, although research supports some uses more clearly than others.

This page shows you how we think. Pain is a useful place to begin because it explains many of the questions we ask and choices we make in the treatment room.

Pain does not tell us exactly how much damage there is

Nerve endings in your skin, muscles, joints, and organs detect changes in the body. Some respond to things that could cause harm, such as strong pressure or heat, and send messages to your spinal cord and brain. These warning messages are one part of how pain happens. ^[1]

Your nervous system — your brain, spinal cord, and nerves — helps shape how much something hurts. Sleep, stress, and past experiences can affect this too. The same sore shoulder may feel worse after a poor night’s sleep. Your pain is real, and none of this is something you consciously choose. ^[1]

Think of a paper cut: a small injury can demand remarkable attention. More pain does not always mean more damage.

When pain continues for a long time, the nervous system can become more sensitive. It may act like a smoke alarm that goes off when you make toast. Normal pressure or movement can then feel more painful than it once did.

An injury or another health problem may still be contributing, so we first need to understand what is happening and check for signs that require medical assessment. ^[1] That is why we ask about when your symptoms began, what affects them, and whether they are changing. We also ask about your sleep, work, and the things you have stopped doing. Together, your answers help us work out what may be maintaining the pain, what you want help with, and whether acupuncture is appropriate for you.

Your body already runs on signals. We are joining a conversation that is already happening

Your nerves carry messages between your body and brain. Some report what you are touching or how a joint is moving; others help control your muscles. The spinal cord, the bundle of nerve tissue inside your spine, helps carry and process these messages.

Most of this happens outside your awareness. You notice the result: how you feel and move.

A needle stimulates the area where we place it. This can affect nearby tissue and send messages through the nerves. One way to picture it is joining a conversation already in progress. Research suggests these effects may help change how the body handles pain. ^[2]

That is part of what we are trying to do with treatment. It also raises a fair question: how do we know where to put the needle?

Why we press around before we needle

We watch how you move and gently press around the areas that may be involved. Does that bring on the discomfort you came in about?

“That's the feeling I get at work” and “That's tender, but it's different” give us useful clues.

We combine those clues with your health history and any medical findings.

We may needle near the pain, farther away, or both, considering safety and comfort. If a choice surprises you, please ask why.

Meridians, channels, and acupoints 
Meridians are a traditional Chinese medicine map used to guide needle placement. We use this alongside our examination; its relationship to structures such as nerves is still being studied.

The diagnosis gives us a starting point. What we learn about you shapes the treatment.

What can happen when a needle goes in?

Three responses may overlap. Researchers are still working out how much each contributes to pain relief. ^[2]

Around the needle. Connective tissue supports and joins body parts, including the layers around muscles. Turning a needle can pull on this tissue, prompting cells to respond. How much this helps relieve pain remains uncertain. ^[3,4]

In the spinal cord. Messages from needling may engage nerve cells that turn down warning messages travelling towards the brain. This is one possible way acupuncture may help with pain. ^[5]

In the brain. The brain can send messages back down to reduce how strongly warning signals are passed on. Acupuncture may engage these systems and the body's own pain-relieving chemicals. Think of a volume control that responds differently in each person. ^[5]

You may feel aching, heaviness, or tingling. Stronger does not mean better. Tell us if anything feels sharp, burning, like an electric shock, or too strong, so we can adjust or remove the needle. ^[6]

What this means for how we work with you

Think of one ordinary thing you would like to feel easier. Turning your head in the car? Sleeping on your usual side? That gives us a goal alongside your pain score.

If you feel better, we ask how long it lasts and what becomes easier. We can discuss gradually building up activity in line with your recovery advice. Please tell us about no change or worsening too.

We agree when to review progress. If a few sessions have not helped, we rethink the plan, including whether another health professional could help. You should understand our aim and how we will decide whether to continue.

This article is for general education and does not replace individual assessment or medical advice. Acupuncture outcomes vary between people and conditions. Please consult your GP or an appropriate health professional about ongoing or concerning symptoms.

References and further reading

1. International Association for the Study of Pain. Terminology: pain and sensitisation.

2. National Center for Complementary and Integrative Health. Acupuncture: Effectiveness and Safety.

3. Langevin, H. M., et al. (2002). Evidence of connective tissue involvement in acupuncture. The FASEB Journal, 16(8), 872–874.

4. Langevin, H. M., et al. (2006). Subcutaneous tissue fibroblast cytoskeletal remodeling induced by acupuncture: evidence for a mechanotransduction-based mechanism. Journal of Cellular Physiology, 207(3), 767–774.

5. Zhao, Z.-Q. (2008). Neural mechanism underlying acupuncture analgesia. Progress in Neurobiology, 85(4), 355–375.

6. North Bristol NHS Trust. Acupuncture for pain relief.