If you have been going back and forth on this question, there is a reason it resists a clean answer: for a large number of people, it is both — and the useful goal is not picking a label but working out what each part is contributing.
This article is written to be worked through rather than read. A companion article covers the formal clinical distinctions between cervicogenic headache and migraine; this one is about figuring out your own situation.
Start with what the neck can actually do
The connection is anatomical and established.
Sensory fibers from the upper three cervical nerve roots and trigeminal fibers supplying the face and head terminate on shared second-order neurons in the upper spinal cord — the trigeminocervical complex. Because the brain cannot reliably determine which source a signal came from, upper cervical input gets perceived as head or face pain.
Dreyfuss, Michaelsen and Fletcher demonstrated this by provoking upper cervical joints in healthy volunteers and recording sensation in the occiput and head. Barnsley, Lord and Bogduk established cervical facet joints as a demonstrated source of chronic pain using controlled diagnostic blocks, and Lord’s randomized trial published in the New England Journal of Medicine in 1996 showed that interrupting their nerve supply relieved pain.
So the neck can genuinely generate head pain. The question is whether yours is.
Questions that point toward the neck
Go through these honestly.
Does it always start in the same place, on the same side? Neck-driven headache typically begins in the neck or at the base of the skull and stays on one side consistently.
Can you provoke it? Sustained positions — a long drive, a phone call with the phone wedged on your shoulder, an hour looking down — reliably bringing it on points toward a mechanical source.
Can you find a tender spot? Pressure at the base of the skull on the affected side reproducing or worsening your usual headache is meaningful.
Is your rotation restricted? Turn your head fully each way. A clear difference between sides is worth noting.
Is there a trauma history? Whiplash, a fall, a sports impact, a concussion — even years or decades earlier, and even if it seemed to resolve.
Does the pain stay steady rather than throbbing?
Questions that point toward migraine
Do routine activities make it worse? Climbing stairs, bending, walking briskly. This is one of the strongest single indicators of migraine.
Is there nausea, or sensitivity to both light and sound?
Have you ever had aura — spreading visual disturbance, tingling marching up an arm, developing over five to twenty minutes?
Do attacks switch sides between episodes?
Is there a family history of migraine?
Do triptans work? A clear response points firmly toward migraine.
Is it episodic with genuinely normal periods in between, rather than a background ache that fluctuates?
Reading your answers
Mostly the first set: a cervical source is likely, and evaluation of the neck is the sensible next step.
Mostly the second set: migraine is likely, and the priority is proper migraine treatment. Neck symptoms during attacks are extremely common and do not mean the neck is causing them.
Both sets: the most common result, and the most useful. It usually means an underlying migraine disorder with a cervical contribution feeding the same relay. Treating only one leaves the other running, which is exactly why people plateau.
Neither clearly: you need a proper examination rather than a questionnaire.
What migraine actually is
Worth stating because it explains why a neck contribution can matter without being the cause.
Migraine is neurogenic, not vascular. The older model of vessels constricting then dilating was superseded when blood flow studies found headache frequently begins while cerebral blood flow is still reduced. An attack involves trigeminovascular activation, calcitonin gene-related peptide release, neurogenic inflammation and progressive brainstem sensitization. It is a disorder of a hyperexcitable nervous system with strong genetic determinants.
A hyperexcitable system has a threshold. Anything supplying ongoing input to the trigeminocervical relay reduces the margin before that threshold is crossed. That is the mechanism by which a neck problem can meaningfully worsen a migraine disorder it did not cause.
Where atlas misalignment fits
The atlas carries the skull directly, and the suboccipital muscles beneath it contain some of the highest muscle spindle densities in the human body — sensors reporting head position to the brainstem, supplying the reference frame the brain needs to interpret vestibular and visual input.
When the atlas sits misaligned, that reference frame is distorted and the brainstem’s postural and autonomic regulation operates on skewed information. Seaman and Winterstein described the consequence as dysafferentation — abnormal mechanoreceptor input altering central processing, muscle tone and autonomic regulation. A coherent framework, not validated in controlled trials.
Manohar Panjabi proposed how this begins: ligaments stretched beyond their elastic limits without rupturing, invisible on standard imaging but capable of altering mechanoreceptor output. Biomechanically grounded; the clinical extension is a model.
Three further mechanisms need accurate labelling. Gary Hack and colleagues established the myodural bridge connecting the suboccipital muscles to the spinal dura — anatomically confirmed and repeatedly demonstrated, with the proposal that sustained tension reaches pain-sensitive dural tissue remaining clinically preliminary. Scott Rosa has published imaging observations and case series proposing craniocervical misalignment affects cerebrospinal fluid and venous flow; this consists of case series, book chapters and imaging observations rather than controlled trials, uses a proprietary patented method, and involves commercially linked imaging technology — a 2025 scoping review of weight-bearing MRI found only nine qualifying studies, mostly small feasibility reports. Michael Flanagan proposed the junction as a choke point affecting fluid circulation, venous drainage, arterial supply and brainstem regulation — a single-author hypothesis without controlled trial validation.
The practical next step
Keep a four-week diary with two columns: headache features (side, quality, nausea, light sensitivity, effect of activity) and neck features (stiffness, position that preceded it, tenderness, rotation). Patterns that are invisible in memory become obvious on paper.
See a physician about the headache side regardless. If migraine is part of the picture, effective treatments exist and should not wait.
Treat any neck finding as a contributor to investigate, not as the answer.
Upper cervical evaluation
Evaluation begins with specific testing to determine whether a misalignment is present — plenty of people with headaches do not have one, and treating as though they do is poor practice. Where testing indicates it, cone beam CT three-dimensional imaging locates the exact pattern on that individual’s anatomy. The correction is gentle and precisely directed, made without popping, twisting or yanking the neck, and the approach is oriented toward holding the correction, with follow-up testing determining whether an adjustment is needed rather than delivering one by default.
Stated fairly: upper cervical care has not been demonstrated superior to other conservative approaches in head-to-head randomized trials, and it is not an alternative to migraine treatment where migraine is present.
Medical Disclaimer
This article is educational and does not constitute medical advice, diagnosis or treatment, and the questions above are not a diagnostic test. Persistent or changing headaches require medical evaluation. Seek emergency care immediately for sudden severe headache unlike any before, sudden vision loss, double vision, slurred speech, facial drooping, one-sided weakness, numbness or difficulty speaking, progressive weakness or loss of coordination, seizure, or headache with fever, neck stiffness and confusion.
Learn more about upper cervical evaluation and care at neckwise.com.
Written by Dr. Drew Hall, Upper Cervical Chiropractor.