The diagnosis of torticollis is primarily made through a detailed physical examination by a doctor. During this examination, the baby's range of head movement and tilt are assessed. Additionally, the neck muscles are carefully examined for swelling or stiffness. Depending on the severity of the condition, the doctor may request further tests:

* Neck X-ray
* Computed tomography (CT) scan of the head and neck
* Magnetic resonance imaging (MRI) scan of the head and neck