Cervical lordosis is the natural inward curve of your neck. Looking at someone from the side, the cervical spine (the seven vertebrae running from the base of the skull to the upper back) bows gently forward, creating a C-shaped arc. This curve is measured between the second and seventh vertebrae (C2 to C7), and a healthy range typically falls between 20 and 35 degrees. If you’ve seen this term on an imaging report, it’s almost certainly describing the shape, or change in shape, of that curve.
Why the Curve Matters
The lordotic shape isn’t cosmetic. It allows the cervical spine to absorb compressive forces during walking, running, and even just holding your head upright. Unlike the rest of the spine, the cervical region distributes load unevenly: about 36% goes through the front of the vertebrae and 64% through the facet joints in the back. That split only works efficiently when the curve is intact.
Beyond shock absorption, cervical lordosis supports breathing, chewing, vocalization, and the ability to keep your eyes level with the horizon. When the curve flattens or reverses, these functions aren’t immediately lost, but the mechanical stresses on the discs, joints, and surrounding muscles shift in ways that can cause problems over time.
What “Normal” Looks Like on Imaging
Doctors measure cervical lordosis using a method called the Cobb angle. A line is drawn along the bottom of the C2 vertebra and another along the bottom of C7; the angle where those lines intersect is your cervical lordosis measurement. Studies of people without neck problems have found averages ranging from about 14 degrees in a large Japanese population to 23 degrees in a Western study, which reflects how much natural variation exists. The commonly cited “clinically normal” window is 31 to 40 degrees, based on research comparing people with and without neck pain.
That wide range means a single number on your report doesn’t automatically signal a problem. Context matters: your symptoms, your age, and whether the curve has changed over time are all part of the picture.
Loss of Cervical Lordosis
When a report says you have “loss of cervical lordosis,” “straightening,” or “hypolordosis,” it means the normal inward curve has flattened. If the curve has gone beyond flat and started bowing the wrong way (outward), the term shifts to “cervical kyphosis.” These are two points on a spectrum, not entirely separate conditions, and the causes overlap.
Several factors can flatten or reverse the curve. Prolonged forward head posture, common with desk work and phone use, places sustained load on the front of the cervical discs. Muscle spasms from injury or strain can temporarily pull the spine straight as a protective response. Whiplash injuries may alter the curve acutely. Degenerative disc disease, where the cushions between vertebrae lose height and hydration over the years, can gradually reshape the alignment. In some people, a straight cervical spine is simply their baseline and has been that way since adolescence.
Symptoms and What the Evidence Shows
This is where things get nuanced. A study of nearly 300 cervical X-rays found a statistically significant link between neck pain and lordosis measuring less than 20 degrees. But a larger study of over 700 volunteers concluded that sagittal alignment alone wasn’t associated with neck symptoms. Degenerative changes in the discs and joints were a stronger predictor of pain, particularly in women.
In practical terms, many people with a straight cervical spine have no symptoms at all, and some people with a perfectly lordotic curve have significant neck pain. Researchers have acknowledged that the evidence is too mixed to predict a patient’s clinical outcome based on the curve alone. That said, when loss of lordosis does coincide with symptoms, the common complaints include neck pain and stiffness, tension headaches, pain radiating into the shoulders or arms, and in some cases dizziness that originates from the cervical spine (cervicogenic dizziness).
Connection to Disc Problems
One area where the research is more consistent involves disc herniation. A study of young neck pain patients found a clear inverse relationship: less lordosis correlated with more disc herniation. Patients with a kyphotic (reversed) curve had an average disc herniation score nearly four times higher than those who maintained a lordotic curve. Patients with a straightened neck fell in between. The relationship held even after accounting for other variables, suggesting that abnormal curvature does increase mechanical stress on the discs, even if it doesn’t always produce pain on its own.
How Cervical Lordosis Is Restored
When loss of cervical lordosis is contributing to symptoms, treatment generally focuses on two goals: reducing pain and gradually restoring the curve. The most studied approach is cervical extension traction, a category of techniques that apply a sustained backward force to the mid-neck while you lie on your back or sit in a specialized chair. A systematic review of controlled trials found that patients receiving extension traction gained 12 to 18 degrees of lordosis over 5 to 15 weeks (typically 15 to 60 sessions). Pain scores dropped by 2 to 4 points on a standard 11-point scale, and disability measures improved by 10 to 27%.
One commonly used device is the Denneroll, a foam orthotic you lie on that pushes gently into the back of the mid-neck. In three trials, 20-minute sessions with the Denneroll produced 13 to 14 degrees of improvement after 30 to 36 treatments. Importantly, follow-up data ranging from 3 months to over 15 months showed that the correction largely held, with patients losing at most about 3.5 degrees (roughly 19% of the original improvement) at the longest follow-up point.
Beyond traction, physical therapy programs for cervical lordosis loss typically include strengthening exercises for the deep neck flexors (the muscles at the front of the spine that help maintain posture), stretching the muscles at the back of the neck that may have shortened, and postural retraining to reduce forward head position during daily activities. Research on cervicogenic dizziness specifically found that combining lordosis correction with head posture retraining led to greater and longer-lasting improvements than symptom-focused treatment alone.
Ergonomic and Sleep Adjustments
Your neck spends roughly a third of its life on a pillow, so what you sleep on matters. Contour pillows, sometimes called cervical or orthopedic pillows, are designed with a deeper depression for the head and a raised section that supports the curve of the neck. This keeps the cervical spine in a more neutral alignment compared to a flat or overly thick pillow. Some designs use a J-shape with a cutout for the ear to maintain alignment for side sleepers.
During the day, your screen setup has the biggest impact. Positioning your monitor so the top of the screen sits at or just below eye level reduces the tendency to flex the neck forward. If you work on a laptop, an external keyboard paired with a laptop stand makes a significant difference. For phone use, bringing the phone closer to eye level rather than dropping your chin accomplishes the same thing. These adjustments don’t restore a curve that’s already flattened, but they reduce the postural forces that contribute to further loss.