Causes and Risk Factors
In trigeminal neuralgia, the function of the trigeminal nerve is disrupted from contact between a normal blood vessel and the trigeminal nerve at the base of the brain, leading to pressure on the nerve.
This can be a result of ageing, tumour, multiple sclerosis, or a disorder that damages the myelin sheath protecting certain nerves.
Brain lesion, surgical injuries, stroke, or facial trauma may also be a potential cause.