10 Signs of Cervicogenic Headache (And How It's Different From a Migraine)

A cervicogenic headache is a headache caused by a problem in your neck, not your brain. It usually shows up as one-sided pain that starts at the base of the skull or neck and spreads toward the forehead, temple, or the back of the eye, and it gets worse when you move your neck or hold your head in one position for too long. Below are the clearest clinical signs, their causes, and how doctors distinguish them from a migraine or tension headache.

What Is a Cervicogenic Headache?

Cervicogenic headache (sometimes shortened to CGH) is what’s called a “secondary” headache — meaning the pain doesn’t originate in the head itself but is referred there from structures in the neck. Most often, the trouble starts at the top of the spine, particularly the C2-3 facet joint, which research identifies as the source in roughly 70% of cases. Other contributors include the upper cervical discs, ligaments, and muscles.

Because the nerves in your upper neck and the nerves in your face and head share a common relay station in your brainstem (called the trigeminocervical nucleus), pain signals from the neck get misread by your brain as head pain. That’s the mechanical root of nearly every symptom on this list.

1. Headache That’s Only on One Side

The single most consistent feature across diagnostic criteria is unilaterality — the pain stays on one side and doesn’t switch sides during an episode. A 2023 clinical study on ultrasound-guided treatment for cervicogenic headache defined the condition as “unilaterality of the pain, without side shift” and used this criterion as a core inclusion criterion for diagnosis.

This is one of the biggest differences from migraine, which can occur on either side and sometimes switches sides between attacks.

2. Pain That Starts in the Neck and Moves Forward

Instead of starting behind the eyes or at the temples like a migraine often does, cervicogenic headache pain typically begins at the back of the head or upper neck and radiates forward toward the forehead, temple, or eye socket. Case reports describe this pattern clearly, including one documented case where pain was “localized suboccipitally with radiation to her jaw and posterior neck.”

3. Reduced Neck Range of Motion

Stiffness isn’t a side effect of a cervicogenic headache — it’s one of its defining features. Both the International Headache Society and the Cervicogenic Headache International Study Group list reduced cervical range of motion, especially limited neck extension, as a core diagnostic marker, according to a systematic review and meta-analysis that validated clinical exams against diagnostic nerve blocks.

If turning your head to check a blind spot or looking up at a shelf feels noticeably restricted or painful, that’s a meaningful clue.

4. Pain Triggered by Neck Movement or Posture

Unlike migraines, which can strike regardless of what your body is doing, cervicogenic headache pain has an identifiable mechanical trigger. Clinical criteria describe this as pain triggered by neck movement, sustained awkward positioning, or firm pressure over the back of the neck or skull, as outlined in a problem-based learning discussion on diagnosis published by the American Society of Regional Anesthesia and Pain Medicine.

Common everyday triggers include:

• Looking down at a phone or laptop for long stretches
• Sitting at a poorly set-up desk
• Sleeping in an awkward position
• Whiplash from a car accident
• Heavy lifting that strains the neck

5. Shoulder and Arm Pain on the Same Side

Cervicogenic headache rarely stays contained to the head. It’s common to also feel pain radiating down the same-side shoulder and arm. This “ipsilateral diffuse shoulder and arm pain” is a hallmark feature that distinguishes it from headache types that remain localized to the skull.

6. Tenderness Over the Upper Neck and Skull Base

Many people with cervicogenic headache notice their pain worsens with firm pressure over the base of the skull or the upper neck joints. Clinical trial criteria for diagnosing the condition specifically look for joint tenderness in the upper cervical spine (the C1 through C3 vertebrae) as a required sign, based on eligibility standards from a clinical trial on trigger point therapy.

7. Dizziness or Unsteadiness

Because the upper neck contains receptors that help your brain track head position and balance, dysfunction there can throw off your sense of spatial orientation. Dizziness associated with impaired positional awareness is a frequently reported companion symptom, as described in a clinical overview of neck-related headache and dizziness.

8. Pressure Behind the Eye or Facial Discomfort

Some people describe a deep ache or pressure behind the eye, along with facial tightness, even though the problem originates in the neck. This referred sensation occurs because the same nerve pathways that carry pain from the upper neck also innervate the trigeminal nerve, which supplies sensation to the face. Clinical documentation of cervicogenic headache cases has recorded this radiating to the jaw and periorbital area.

9. Headache Episodes That Build Gradually, Not Suddenly

Rather than the sudden, throbbing onset typical of a migraine, cervicogenic headache tends to build progressively, often starting mild and intensifying with continued neck strain, poor posture, or prolonged sitting.

10. Relief With Neck-Focused Treatment

One of the more telling signs is how the headache responds to treatment. Cervicogenic headache typically doesn’t respond well to standard migraine medications, but it often improves with physical therapy, posture correction, or nerve blocks targeting the neck. In fact, response to diagnostic anesthetic nerve blockade of the cervical structures is considered one of the defining diagnostic criteria itself.

Why Cervicogenic Headache Is Often Misdiagnosed

Accurately diagnosing cervicogenic headache is genuinely difficult, even for specialists. A systematic review and meta-analysis of diagnostic studies found substantial overlap between cervicogenic headache and migraine, noting that different headache disorders frequently present with similar signs and symptoms, according to research published in. Some estimates in a broader review of physical examination findings suggest that headache misdiagnosis occurs in roughly half of all cases, based on a systematic review and meta-analysis comparing migraine, cervicogenic headache, and headache-free individuals.

This is part of why imaging alone (like an MRI or X-ray) usually isn’t enough to confirm the diagnosis — degenerative changes in the neck show up in plenty of people who don’t have headaches at all. A combination of your symptom pattern, a hands-on physical exam, and sometimes a diagnostic nerve block gives the clearest answer.

Common Causes Behind These Signs

The signs above usually trace back to a handful of underlying mechanical issues in the neck:

• Poor posture and “tech neck” from long periods of looking down at phones or screens
• Whiplash injuries, commonly from car accidents
• Cervical spondylosis or arthritis, causing joint inflammation and nerve irritation
• Herniated or bulging discs in the cervical spine compressing nearby nerves
• Muscle strain from sleeping positions, heavy lifting, or repetitive stress
• Stress-related muscle tension in the neck and shoulders

When to See a Doctor

If you’re noticing several of these signs together, especially one-sided pain, neck stiffness, and headaches triggered by movement, it’s worth getting evaluated rather than just treating the headache in isolation. A physical therapist or physician familiar with cervicogenic headache can assess your cervical range of motion, check for joint tenderness, and help rule out other causes.

If you ever experience a sudden, severe headache unlike any you’ve had before, a headache following a head or neck injury, or a headache accompanied by fever, vision changes, confusion, or weakness, seek medical care promptly, since these can signal something more serious than a cervicogenic issue.