Congenital muscular torticollis, in layman’s language, means an infant is born with a twisted neck. The chin points to one shoulder; the head tilts to the other. This occurs when one of a child’s neck muscles – the sternocleidomastoid – is short, causing the head to angle to one side. Experts do not know why this happens. Fortunately, 90 percent of these cases can be treated through exercise.