When most people think about acupuncture for migraine, they understandably think about pain.
Can acupuncture make my headache go away? Can it reduce how often I get migraines? Which acupuncture points are used for migraine?
Those are reasonable questions. But modern acupuncture research is asking a much more interesting one:
What is acupuncture actually doing to the brain?
Migraine is not simply a headache disorder. During a migraine, the brain can process the world around us differently. Light can become painfully bright. Normal sounds can feel overwhelming. Smells can trigger nausea. Movement can make symptoms worse. Some people experience eye pain, dizziness, visual disturbances, or extreme sensitivity to touch.
In other words, migraine involves not only pain, but changes in how the nervous system processes and responds to sensory information.
And that is where acupuncture research gets particularly interesting.
In 2025, researchers published a review in Frontiers in Neurology examining 40 neuroimaging studies investigating what happens in the brains of people with migraine following acupuncture.
What they found suggests that acupuncture is not affecting just one isolated “pain center” in the brain.
Researchers have observed changes across multiple interconnected brain regions and networks involved in pain processing, attention, sensory processing, emotional responses to pain, and the brain’s own ability to regulate pain.
That gives us a very different way of thinking about acupuncture for migraine.
The goal is not simply to chase the headache. We are providing sensory input to a nervous system in order to change the conversation happening in the brain for the better.
Migraine Is More Than Head Pain
If you live with migraine, you already know that the condition can affect far more than your head.
A migraine attack may involve throbbing or pressure-like pain, but it can also include nausea, vomiting, dizziness, visual changes, fatigue, brain fog, neck discomfort, and sensitivity to light, sound, smell, or movement.
Sometimes these sensory symptoms appear before the pain. Sometimes they continue after the headache has eased. And for some people, sensory sensitivity is present even between attacks.
This is one reason researchers increasingly view migraine as a disorder involving the nervous system’s processing of sensory information—not simply as a problem with blood vessels or a painful muscle.
The brain is constantly receiving information from the eyes, ears, skin, muscles, and internal organs. It must decide what matters, what feels threatening, and how strongly to respond.
During migraine, that processing can become unusually sensitive or amplified.
A normal light may feel harsh. A familiar smell may become nauseating. A quiet room may still feel too loud. Ordinary movement may intensify symptoms.
So when we ask whether acupuncture may help migraine, it makes sense to ask not only whether it affects pain, but whether it influences the broader networks involved in how pain and sensory information are processed.
What Neuroimaging Studies Can Show
Neuroimaging allows researchers to study the living brain in ways that were not possible in the past.
Different imaging methods provide different kinds of information. Functional MRI can show changes in brain activity or communication between regions. Diffusion tensor imaging can examine aspects of the brain’s white-matter pathways. Magnetic resonance spectroscopy can measure certain chemical metabolites. PET imaging can provide information about metabolic activity and other physiological processes.
These tools do not provide a simple picture of “the migraine center” or “the acupuncture center.” Instead, they help researchers observe patterns across connected regions and networks.
In the 2025 review published in Frontiers in Neurology, researchers examined 40 controlled clinical neuroimaging studies of acupuncture for migraine. Eight studies focused on immediate effects, while 32 examined preventive treatment.
The studies used several imaging approaches, including functional MRI, diffusion tensor imaging, magnetic resonance spectroscopy, and PET or CT-based methods.
- Pain processing
- Sensory integration
- Attention
- Emotional responses to pain
- Cognitive evaluation of pain
- Descending pain regulation
Frequently discussed regions included the precuneus, middle frontal gyrus, postcentral gyrus, anterior cingulate cortex, insula, thalamus, and brainstem.
That list may sound technical, but the larger message is straightforward:
Acupuncture-related changes were observed across a network of regions involved in how the brain notices, interprets, evaluates, and regulates pain and sensory information.
The Brain’s Pain-Regulation Systems
The brain does not simply receive pain signals passively.
It can increase the intensity of a signal, reduce it, redirect attention away from it, or change the emotional meaning attached to it. This process involves communication between the brain and the body through what researchers often call descending pain modulatory systems.
These systems include pathways connecting areas of the brain with the brainstem and spinal cord. They can help turn pain signals up or down.
This does not mean pain is imaginary or “all in your head.” It means that pain is produced through an active process involving the nervous system. The brain evaluates incoming information in the context of stress, sleep, attention, emotion, prior experience, and perceived threat.
Acupuncture may provide a form of structured sensory input that interacts with these regulatory systems.
The needle itself is not simply “blocking” a headache. The stimulation may activate sensory nerves and send information into the nervous system. The brain then processes that information alongside everything else happening in the body.
Over time, repeated treatment may help influence how these systems respond to incoming signals. That is one possible explanation for why acupuncture may be useful not only during an attack, but also as part of a preventive approach for some people.
Why the Salience Network Matters
One of the networks discussed in migraine research is the salience network.
In simple terms, this network helps the brain decide what deserves attention. It helps identify signals that may be important, urgent, or threatening.
During a migraine, ordinary sensory information can become unusually prominent. Light, sound, smell, movement, or internal sensations may demand attention in a way they normally would not.
If the nervous system is already sensitized, these signals may be interpreted as more intense or more disruptive.
Research examining acupuncture has reported changes in regions associated with salience processing, including the insula and anterior cingulate cortex.
This does not mean acupuncture simply turns the salience network off. The brain is more complicated than that. Rather, acupuncture may influence how the nervous system evaluates and responds to incoming sensory information.
That distinction matters.
The goal is not to eliminate awareness. It is to help the nervous system respond more appropriately to signals that might otherwise become overwhelming.
Attention, Emotion, and the Experience of Pain
Pain is influenced by more than the intensity of a physical signal.
Where attention goes can affect how strongly pain is experienced. Stress can make symptoms feel more threatening. Fear and anticipation can increase vigilance. Fatigue can reduce the nervous system’s ability to regulate discomfort.
This is not a matter of choosing to feel better. These are normal biological processes.
The neuroimaging literature on acupuncture and migraine includes regions involved in attention, emotional processing, and cognitive evaluation of pain. These findings are consistent with the idea that acupuncture may influence not only the sensory component of migraine, but also the way the brain interprets and responds to that sensory input.
For a person with migraine, this may be relevant to the entire experience of an attack:
- How quickly light becomes intolerable
- How threatening a new sensation feels
- How difficult it is to shift attention away from pain
- How strongly nausea or dizziness affects daily activity
- How long it takes the nervous system to settle after an attack
Again, this does not mean symptoms are psychological or imagined. It means that the experience of migraine emerges from communication among sensory, emotional, cognitive, and regulatory systems.
Immediate Effects Versus Preventive Effects
The review included studies examining both immediate and preventive acupuncture treatment.
Immediate effects refer to changes observed around the time of treatment. These may help researchers understand how the nervous system responds to acupuncture stimulation in the short term.
Preventive effects refer to changes observed after a course of treatment, often alongside changes in migraine frequency, severity, or related symptoms.
These are not necessarily the same process.
A person may experience temporary changes in pain processing after one treatment, while repeated treatment may influence broader patterns of nervous-system regulation. Preventive care may also work indirectly by reducing the frequency or intensity of attacks, improving sleep, lowering stress, or helping the nervous system recover more effectively between episodes.
This is why acupuncture for migraine is often best understood as a process rather than a single-point intervention.
The question is not only, “Which point treats migraine?”
It is also:
How can we provide the nervous system with input that supports more balanced regulation over time?
The Bigger Picture
The most interesting finding from the neuroimaging literature is not that acupuncture affects one particular brain region.
It is that acupuncture appears to interact with networks.
Those networks help the brain process pain, prioritize sensory information, evaluate threat, regulate emotion, direct attention, and control pain signals moving through the nervous system.
That matches the lived experience of migraine better than the idea of a single headache switch.
Migraine is a whole-nervous-system experience. It can affect vision, hearing, smell, movement, balance, digestion, mood, concentration, and energy—not just the sensation of pain.
Acupuncture research is beginning to reflect that complexity.
Acupuncture for migraine is not simply about placing needles near a painful area. It is about providing sensory input to a nervous system that is capable of processing, adapting, and regulating that input.
And modern neuroimaging is giving researchers a way to watch that process unfold.
Reference: Tong D, Yao R, Zhang X, Tao S, Chen N, Wu W, Wu S, Zhou J, Ren Y, Liang F, Pan L, Li Z. Acupuncture for migraine: a literature review of neuroimaging studies. Front Neurol. 2025 Jun 25;16:1601554. doi: 10.3389/fneur.2025.1601554. PMID: 40635712; PMCID: PMC12237655.