Trigeminal neuralgia manifests in the regions of the face covered by the distributions of the trigeminal nerve, featuring recurrent, severe pain. The onset of the disorder is sudden and it resolves quickly as well. The pain is usually described as cutting, electric shock-like, burning, or tearing; it is a stubborn, difficult-to-treat pain, colloquially known as the "king of pain" and "the foremost pain in the world," which reflects the extreme level of pain associated with trigeminal neuralgia. Trigeminal neuralgia is generally not fatal, but it inflicts significant harm on the human body, making sufferers feel as if death would be preferable. It causes substantial psychological and physical obstacles and can even trigger the onset of some cardiovascular and cerebrovascular diseases, potentially leading to sudden death. Thus, trigeminal neuralgia is considered a rather dangerous disease.