Is neck manipulation risky? What is known and how the decision is made

The most common effects after cervical manipulation are temporary: tenderness at the treated area, mild headache and a day or two of fatigue.

Serious vascular events have been reported very rarely. Whether these result from the manipulation, or reflect an already-developing vascular process presenting as neck pain, has not been fully separated.

Because of that uncertainty, priority in the neck goes to controlled mobilisation. Its effectiveness is comparable and its risk profile lower.

High-velocity technique is not preferred in people with vascular risk factors. Recent-onset headache or neck pain of unusual severity is assessed with particular care in this group.

Manipulation is not applied in patients with a history of dizziness, double vision, speech disturbance, difficulty swallowing or facial numbness, and medical review is requested.

Advanced osteoporosis, recent fracture, conditions affecting joint ligaments such as rheumatoid arthritis, infection and a history of tumour also exclude manipulation.

Self-cracking the neck is a common habit and usually gives a temporary sense of relief. That relief is a momentary sensory effect rather than a real change in range.

As it becomes habitual, the person needs it more often. The reason is that the tension is not actually resolved and the underlying lack of muscular endurance persists.

There is no strong evidence that self-cracking causes lasting damage, but endurance work is advised over frequently repeated forceful movements. The lasting solution lies in the latter.