While the exact number of persons living with trigeminal neuralgia is unknown, an estimated 150,000 people are diagnosed with the disorder each year, according to the American Association of Neurological Surgeons. Trigeminal neuralgia occurs more commonly in women and typically in persons over the age of 50.
Trigeminal neuralgia is a neurological disorder characterized by intense, stabbing pain in the forehead, cheek and lower jaw caused by irritation of the trigeminal nerve, claims the American Association of Neurological Surgeons. The pain associated with the disorder is often debilitating. Those suffering from trigeminal neuralgia are commonly left with uncontrollable facial twitching due to the pain. There are several medications and surgical procedures available to alleviate some of the pain caused by the disorder.