First, congenital oblique neck, with a history of difficult birth, a swelling can be palpated on one side of the neck for a few days or days after birth, and the sternocleidomastoid muscle on the affected side can be felt in the form of hard cords when it gets older. In addition, there is a facial deformity, with the head and neck tilted to the affected side, the face turned to the healthy side and tilted back, and the jaw twisted to the healthy side. The facial and facial features are asymmetrical, the affected side of the face is short, the healthy side of the face is long and round, the midline of the face is convex to the healthy side, the line between the two eye fissures and the line between the left and right angles of the mouth are not parallel, and their extension lines intersect the affected side. Secondly, the activity is limited, and the head and neck rotate to the affected side and tilt to the healthy side are obviously limited. Third, cervical spine X-ray examination will show cervical spine deformity, such as cuneiform spine, vertebral body fusion left and right asymmetry, vertebral body dysplasia, vertebral body tilted to the side.