Wry neck, known medically as torticollis, is a condition where the head tilts to one side and rotates in the opposite direction, often with significant pain and stiffness. It can strike suddenly, leaving you unable to turn your head normally, or it can be present from birth. Most cases of sudden wry neck resolve within a few days, though some take longer depending on the underlying cause.
How Wry Neck Happens
The key muscle involved is the sternocleidomastoid, a long muscle that runs along each side of your neck from the base of your skull down to your collarbone and breastbone. When this muscle shortens, spasms, or tightens on one side, it pulls your head into a tilt toward the affected side while rotating your chin toward the opposite side. This creates the characteristic “twisted neck” appearance and restricts how far you can turn or tilt your head.
Because the sternocleidomastoid controls head rotation, side-bending, and forward flexion, a problem on just one side creates an obvious asymmetry. You may notice your range of motion is severely limited, and trying to force your head back to a neutral position causes sharp pain.
Congenital Versus Acquired Wry Neck
The two broad categories are congenital (present at or shortly after birth) and acquired (developing later in life). These have very different causes, timelines, and treatment approaches.
Congenital Wry Neck
Congenital muscular torticollis is the most common form in infants, with an incidence between 0.3% and 2% of births. It’s more common in boys by roughly a 3:2 ratio and tends to affect the right side more often. It happens when trauma during pregnancy or delivery causes swelling in the sternocleidomastoid muscle, which then develops fibrous scar tissue. This scar tissue shortens the muscle fibers, locking the baby’s head in a tilted position. Parents often notice a small, firm lump in the baby’s neck muscle during the first few weeks of life.
A 2024 clinical practice guideline from the American Physical Therapy Association’s Academy of Pediatric Physical Therapy provides updated recommendations covering screening, classification, and physical therapy interventions for these infants. Early treatment with gentle stretching and positioning techniques produces excellent outcomes in most cases.
Acquired Wry Neck
Acquired wry neck is what most adults experience. It often comes on suddenly, sometimes overnight, and the causes are usually mechanical or inflammatory. Common triggers include sleeping in an awkward position, a sudden jerky movement of the head, a minor neck injury, or irritation of the cervical ligaments from a viral infection. You might go to bed feeling fine and wake up unable to turn your head.
Less common but more serious causes include slipped facet joints (the small joints along the sides of the spine), a herniated disc in the cervical spine, bacterial infection, burns or scarring that cause skin or muscle contraction, and muscle spasm from underlying conditions.
What It Feels Like
The hallmark symptom is your head being stuck at an angle, tilted to one side with your chin pointing the other way. Pain is usually concentrated on one side of the neck and can range from a dull ache to a sharp, stabbing sensation when you try to move. Neck stiffness is significant, and both active movement (moving on your own) and passive movement (someone else gently turning your head) are restricted.
Some people also experience muscle tenderness along the affected side, headaches from the sustained muscle tension, and pain that radiates into the shoulder or upper back. In acute cases, the muscle may feel rock-hard to the touch.
Recovery and Treatment
Acute wry neck in adults typically improves on its own within a few days, though some episodes take a week or more to fully resolve. During the initial phase, applying heat to the affected side can help relax the muscle spasm. Over-the-counter pain relief and anti-inflammatory medications can manage discomfort while the muscle recovers.
Once the sharpest pain has subsided, gentle stretching exercises help restore range of motion. These should be done slowly, backing off if they increase pain. Effective movements include neck rotation (turning your head to each side and holding for 15 to 30 seconds, repeating 2 to 4 times per side), lateral stretches (tipping your ear toward your shoulder without letting the opposite shoulder rise), and forward bends (dropping your chin toward your chest and holding for 15 to 30 seconds).
Strengthening exercises can follow once pain allows. A simple isometric exercise involves placing two fingers on your temple and gently pressing while resisting the movement with your neck muscles, holding for about 6 seconds and repeating 8 to 12 times. These exercises build the neck’s ability to support your head and may reduce the chance of recurrence.
Chronic and Recurring Cases
Some people develop a chronic form called cervical dystonia (previously known as spasmodic torticollis), where involuntary muscle contractions cause sustained or repetitive twisting of the neck. This is a neurological condition, distinct from the mechanical “slept wrong” type. It tends to be persistent and requires more involved treatment.
For cervical dystonia, injections of botulinum toxin into the overactive neck muscles are an established first-line treatment. Multiple formulations have strong clinical evidence supporting their effectiveness. The injections work by temporarily weakening the muscles responsible for the abnormal posture, and they typically need to be repeated every few months as the effect wears off. Physical therapy is usually recommended alongside injections to maximize improvement in head position and range of motion.
Signs That Need Prompt Attention
Most wry neck episodes are painful but harmless. However, certain patterns suggest a more serious underlying cause. If your wry neck follows a significant injury or trauma to the head or neck, develops alongside fever, comes with neurological symptoms like numbness, tingling, or weakness in the arms, or doesn’t improve at all after several days of self-care, these warrant a medical evaluation. Wry neck in a child who didn’t have it from birth also deserves a closer look, as it can occasionally signal infection, a problem with the cervical spine, or other conditions that need treatment beyond stretching.