Yes, torticollis can cause scoliosis. When the head stays tilted to one side for months or years, the spine compensates by curving in the upper back and neck region. In one study of 106 patients with congenital muscular torticollis, 87 (about 82%) developed measurable scoliosis in the cervicothoracic spine, the area spanning the lower neck through the upper back.
How a Tilted Head Leads to Spinal Curvature
Torticollis holds the head at an angle, typically because a tight or shortened neck muscle pulls it to one side. Your body doesn’t tolerate that asymmetry passively. To keep your eyes level and your balance centered, the spine below the neck gradually shifts to counterbalance the tilt. Over time, this compensation reshapes the vertebrae and supporting structures into a lateral curve.
The resulting scoliosis tends to appear in the cervicothoracic region, roughly from the base of the neck (around the C7 vertebra) into the upper thoracic spine. The curve’s direction is predictable: the spine bows outward on the same side the head tilts toward. The more severe the torticollis, the more pronounced the scoliosis tends to be, with the two conditions closely correlated in both direction and degree.
Not Just Muscular Torticollis
Most people think of congenital muscular torticollis, the kind caused by a tight muscle on one side of the neck, usually noticed in infancy. But there’s another form worth knowing about: ocular torticollis. This happens when an eye muscle problem causes double vision, and the person unconsciously tilts their head to see clearly. The head tilt looks the same from the outside, and it carries the same risk of secondary scoliosis.
Ocular torticollis is particularly easy to miss. Over time, the body adapts to the abnormal posture so thoroughly that the original visual symptoms fade into the background. What remains is the scoliosis, the headaches, and the back pain. Clinicians sometimes treat only the spinal curve without recognizing that the root cause is an eye muscle issue, which means the underlying problem goes unaddressed.
What Happens if Torticollis Goes Untreated
In children, the skeletal system is still growing and moldable. That’s both a risk and an opportunity. Left untreated, prolonged torticollis doesn’t just curve the spine. It reshapes the face and skull asymmetrically (one side of the face can appear flatter or smaller), and it alters the vertebrae themselves, particularly the top two vertebrae just below the skull.
Research on adults who never had their congenital muscular torticollis treated found permanent structural changes along the cervical spine, including bending and rotation deformities in the vertebrae. These changes can be significant enough that even surgical correction of the tight neck muscle later in life may not fully resolve the residual head tilt, because the bones themselves have remodeled around the abnormal position.
How Doctors Tell It Apart From Other Scoliosis
Not every child with both torticollis and scoliosis has one causing the other. Sometimes what looks like muscular torticollis is actually caused by a malformed vertebra in the neck. In one documented case, a child was treated for congenital muscular torticollis for 12 months with no improvement before imaging revealed that the real problem was an irregularly formed cervical vertebra causing both the head tilt and the spinal curvature independently.
The distinction matters because treatment is completely different. Secondary scoliosis caused by a tight neck muscle can improve when the torticollis is corrected, especially early on. Scoliosis caused by a vertebral bone defect won’t respond to stretching or muscle release. Doctors differentiate between the two using imaging of the cervical spine, looking specifically at whether the vertebrae are normally shaped or show irregular formation or segmentation. They also measure angles between the jawline and the upper spine to quantify how much the torticollis contributes to the overall alignment problem.
Why Early Treatment Changes the Outcome
The connection between torticollis severity and scoliosis severity is consistent enough that it carries a clear practical message: treating the head tilt early reduces the risk of the spine curving in response. For congenital muscular torticollis, treatment typically starts with physical therapy focused on stretching and strengthening the affected neck muscle. Most infants respond well to this within the first year of life.
When physical therapy isn’t enough, surgical release of the tight muscle is an option. In the study of 106 patients who ultimately needed surgery, the scoliosis measurements improved after the torticollis was corrected, confirming that the spinal curve was compensatory rather than independent. The spine, no longer needing to counterbalance a tilted head, gradually straightened.
The key variable is time. A few months of head tilt in an infant is unlikely to produce lasting spinal changes. Years of uncorrected torticollis through childhood and adolescence, when the spine is actively growing, creates progressively harder-to-reverse structural adaptations. The vertebrae remodel, the muscles on each side of the spine develop unevenly, and what started as a flexible postural compensation can stiffen into a fixed curve.