Can a Herniated Disc in the Neck Cause Headaches?

A herniated disc in the cervical spine can cause headaches, and the connection is more common than many people realize. In studies of patients undergoing cervical disc surgery, roughly 86% reported headaches before the procedure, with more than half describing them as moderate to severe or nearly constant. The medical term for headaches that originate from structures in the neck is “cervicogenic headache,” and a bulging or herniated disc is one of the cervical problems that can trigger them. The relationship between disc disease and head pain, though, is less straightforward than a simple pinched-nerve explanation would suggest.

How a Neck Problem Creates Head Pain

The key to understanding why a cervical disc problem can make your head hurt lies in how pain signals from the upper neck converge with signals from the head and face. Sensory nerve fibers from the upper three cervical spinal segments (C1, C2, and C3) feed into a region of the brainstem called the trigeminocervical nucleus. This same nucleus also receives input from the trigeminal nerve, which is the main sensory nerve for the face, forehead, and temples. Because signals from the neck and from the head share this relay station, irritation in the cervical spine can produce pain that radiates into the back of the skull and then spreads forward toward the forehead, eye, or temple on the same side.¹

A herniated disc does not have to be pressing directly on a nerve root to set this process in motion. Disc material that bulges or leaks can inflame nearby tissues, tighten small muscles around the vertebrae, and restrict the normal mobility of cervical joints. All of these consequences feed abnormal signals into that shared brainstem pathway. The result is a headache that starts in the neck or at the base of the skull and can wrap around to the front of the head, mimicking a migraine or tension headache to the untrained eye.

Which Disc Levels Matter Most

Cervical disc herniations most often occur at C5-C6 and C6-C7, which are lower in the neck and primarily cause arm symptoms like pain, numbness, or weakness. Headaches, on the other hand, are more strongly linked to problems at the upper cervical levels. A post hoc analysis of a randomized trial involving anterior cervical disc surgery found that higher cervical levels were associated with a greater degree of preoperative headache.² That makes anatomical sense: the upper segments (C2-C3 and C3-C4) are the ones whose nerves converge most directly with the trigeminal system.

That said, even lower cervical herniations can contribute to headaches. Cervical spondylotic radiculopathy, the most common form of cervical spondylosis and a condition often caused by disc herniations at mid and lower levels, is frequently accompanied by cervicogenic headache.³ The mechanism probably involves a chain reaction: a lower-level disc problem changes neck posture and muscle tension patterns, and those secondary effects irritate the upper cervical structures that actually generate the headache.

The MRI Paradox

One of the most confusing aspects of cervicogenic headache is that imaging does not reliably predict who will have headaches and how bad they will be. A cross-sectional study comparing cervical MRI findings with self-reported symptoms found no statistically significant associations between the degenerative changes visible on MRI and the presence of headache.⁴ In other words, two people with identical-looking MRIs can have completely different headache experiences.

A separate study went further and found a counterintuitive twist: after adjusting for age, certain MRI findings like foraminal stenosis and some types of vertebral endplate changes were actually associated with lower odds of moderate-to-severe headache.⁵ The researchers noted that disc herniation was among the MRI findings with the strongest age-adjusted association with headache severity, but the relationship was not as simple as “bigger herniation equals worse headache.” This disconnect is a recurring theme in spine medicine generally. It means that a dramatic MRI report does not necessarily explain your headaches, and a relatively clean MRI does not rule them out.

How Cervicogenic Headache Feels Compared to Other Headaches

Cervicogenic headache shares territory with migraine and tension-type headache in ways that make misdiagnosis common. All three can cause pain in the forehead, temples, or behind the eyes. The distinguishing features of cervicogenic headache tend to be where the pain starts, how it behaves, and what triggers it. Research comparing the three headache types found that the most important differentiating features were the site and radiation of the pain, its timing pattern, and whether head pain could be brought on by neck posture, movement, or pressing on specific neck structures.⁶

Some practical clues that a headache may be coming from your neck:

One-sided pain: Cervicogenic headache usually stays on one side of the head and does not shift sides between episodes, unlike migraine, which can alternate.
Starts in the neck: The pain often begins at the back of the head or the base of the skull and then travels forward.
Movement triggers: Turning your head, holding a particular posture, or pressing on certain spots along the neck or base of the skull can provoke or worsen the headache.
Limited neck motion: People with cervicogenic headache often have reduced range of rotation when their upper cervical spine is tested, a finding that reliably distinguishes them from migraine patients in clinical studies.⁷
Absence of aura: The visual disturbances, flashing lights, or numbness that some migraine sufferers experience before an attack are not part of cervicogenic headache.

Occipital neuralgia is another condition that overlaps with cervicogenic headache and deserves mention. Both involve pain at the back of the head, but they arise from different pain mechanisms. Cervicogenic headache is a referred-pain condition driven by mechanical and inflammatory irritation of cervical structures, while occipital neuralgia is classified as a neuropathic pain condition involving direct damage to or irritation of the occipital nerves.⁸ The distinction matters because the treatments differ.

Getting a Reliable Diagnosis

Given that MRI does a poor job predicting cervicogenic headache, clinicians lean heavily on physical examination and, when needed, diagnostic nerve blocks. A clinical examination looking for a specific pattern of musculoskeletal signs in the upper cervical spine has been validated against controlled diagnostic blocks and was able to account for about 65% of the variation in who actually had a cervical source of headache.⁹

When clinical examination alone is not conclusive, diagnostic nerve blocks serve as a more definitive test. A small amount of local anesthetic is injected near the suspected cervical nerve or joint under imaging guidance. If the headache temporarily resolves, the cervical source is confirmed. This approach has become central to the accepted diagnostic pathway for cervicogenic headache before considering more invasive treatments.¹⁰ The downside is that the blocks are invasive, require a specialist, and are not widely available at primary care level. For most people, a careful history and physical exam by a clinician who knows what to look for is the starting point.

Nonsurgical Treatments That Help

If a cervical disc herniation is contributing to your headaches, the first line of treatment is almost always conservative. Physical therapy focused specifically on the neck has solid evidence behind it. A randomized study of people with cervical radiculopathy found that those who performed neck-specific exercises showed significant improvements in headache at every follow-up point through one year, and even those assigned to general prescribed physical activity saw meaningful reductions in headache by three months and twelve months.¹¹ The neck-specific exercises targeted deep cervical flexor endurance, range of motion, and scapular stability, all of which help restore normal mechanics to the cervical spine.

For people who do not respond well enough to exercise alone, cervical epidural steroid injections offer a middle ground between physical therapy and surgery. A review of available studies on this approach for cervicogenic headache found that patients showed statistically significant improvement in the short term (hours to days) and medium term (about four weeks), with benefits in some cases lasting up to six months. The proposed mechanism is that the steroid reduces inflammation around irritated nerve roots, breaking what researchers described as a pain-producing loop of nerve root inflammation and micro-injury.¹² However, benefits tended to fade by twelve months, which means injections often work best as a bridge alongside rehabilitation rather than a standalone fix.

Another injection-based approach specifically for disc herniations uses fluoroscopic-guided epidural injections of local anesthetic, with or without steroids. In one study, roughly 70% of patients with confirmed cervical disc herniation achieved at least a 50% reduction in pain and meaningful improvement in daily function. Interestingly, the group that received local anesthetic alone performed comparably to the group that also received steroids, raising questions about how much of the benefit comes from the steroid versus the mechanical effects of the injection itself.¹³

When Surgery Becomes an Option

Surgery for a cervical disc herniation is typically reserved for people with persistent nerve compression causing significant arm weakness, or for those who have not improved with months of conservative care. But for patients whose headache is a dominant symptom, the surgical data is encouraging. A multicenter randomized trial comparing cervical disc arthroplasty (artificial disc replacement) with anterior cervical discectomy and fusion found that about 86% of patients reported headaches before surgery. By six weeks after surgery, the percentage with any headache had dropped to about 64%, and the percentage with frequent moderate-to-severe headaches plummeted from roughly 56% to about 12.5%. Those improvements held up at ten years, with only about 17% still reporting frequent moderate-to-severe headaches.¹⁴

Separate long-term data from a different multicenter trial confirmed that headache improvement was maintained at seven years after both disc replacement and fusion surgery.¹⁵ That long-term durability is significant because it suggests the surgical benefit is not just from post-operative rest or placebo effects but reflects a genuine correction of the underlying pain generator.

There is a nuance worth noting in the surgical data. While higher cervical levels were associated with worse preoperative headaches, the degree of surgical headache relief was not significantly different across levels.² Patients with lower cervical herniations who happened to have headaches got similar relief to those with upper-level problems. This supports the idea that restoring normal cervical mechanics benefits headache even when the disc being treated is not directly at the levels that feed the trigeminocervical pathway.

For disc decompressions done with minimally invasive techniques, a retrospective study found that percutaneous plasma disc decompression achieved cervicogenic headache remission rates of about 76% at six months, significantly outperforming pulsed radiofrequency in patients with cervical radiculopathy.³

What Happens Over Twenty Years

People naturally want to know whether headache relief after treatment lasts, or whether the problem creeps back. The longest follow-up data on cervical disc surgery and headache comes from a study tracking patients more than twenty years after anterior cervical decompression and fusion. At that time point, about 69% of participants still experienced headaches at least occasionally, but the intensity was low, with a median pain score of just 3 on a 100-point scale. Mean disability was modest as well.¹⁶ In plain terms, some headache does tend to recur over decades, but for most people it stays mild enough not to interfere much with daily life.

The Central Sensitization Factor

For some people with cervicogenic headache, the problem goes beyond a mechanical disc issue. Over time, the nervous system can become hypersensitive, amplifying pain signals even after the original structural problem has been addressed or has stabilized. This phenomenon, called central sensitization, appears to play a meaningful role in how disabling cervicogenic headache becomes. A case-control study found that cervicogenic headache patients scored significantly higher on measures of central sensitization, headache impact, neck disability, and psychological distress compared to controls. The degree of sensitization was strongly correlated with anxiety, depression, and overall disability.¹⁷

This matters practically because it helps explain why some people continue to have headaches even after successful disc surgery or after their MRI looks unremarkable. The original disc problem may have kicked off the headache, but the nervous system can learn to maintain the pain pattern independently. Treatments that address only the structural problem may leave behind a sensitized nervous system that keeps generating head pain. For these patients, a combined approach that includes pain neuroscience education, graded exercise, stress management, and sometimes medications targeting central sensitization tends to be more effective than purely structural treatments.

Modern Posture and Cervical Disc Stress

The way most people use phones and computers puts the cervical spine under sustained abnormal loads. When you tilt your head forward to look at a screen, the effective weight your neck muscles and discs must support increases dramatically. This has been associated with what researchers have described as “text neck syndrome,” a collection of symptoms driven by prolonged forward head posture that can contribute to cervical degeneration and associated symptoms including headaches.¹⁸ While the term is somewhat informal, the underlying biomechanics are real: hours spent in a forward-flexed cervical posture accelerate wear on discs and joints, particularly at the levels most commonly involved in cervicogenic headache.

Population-level data also shows that symptomatic cervical disc herniation increases with age and is more common in women than in men.¹⁹ The combination of age-related disc changes and modern postural habits creates a setting where cervicogenic headache is likely becoming more prevalent, even if formal epidemiological tracking has not caught up.

Why the Concept Took So Long to Gain Acceptance

Doctors have suspected a link between the neck and headaches for over 160 years. The concept of headaches originating from the cervical spine was described as early as 1860, but the formal term “cervicogenic headache” was not introduced until 1983.²⁰ Even after that, the diagnosis faced resistance. The International Headache Society, the International Association for the Study of Pain, and the Cervicogenic Headache International Study Group each developed their own diagnostic criteria, and these criteria disagreed with each other in meaningful ways.²¹

That fragmented diagnostic landscape has practical consequences that persist today. A neurologist evaluating your headaches may focus on migraine criteria. A spine surgeon may focus on disc pathology. A physical therapist may focus on cervical mobility deficits. Each specialist is looking through a different lens, and cervicogenic headache sits in the overlap zone between their fields. If you suspect your headaches are connected to a neck problem, the most useful step is to find a clinician who is willing to test that hypothesis with a structured physical examination and, if needed, diagnostic blocks, rather than relying on imaging alone.