The trigeminal nerve is one of the 12 important pairs of cranial nerves in the body, responsible for transmitting sensations from the face to the brain and innervating the bite muscles in concert with chewing function. Trigeminal neuralgia (trigeminal neuralgia) is a chronic painful disorder that affects the trigeminal nerve. It occurs mostly in middle-aged and elderly people. According to experts, the usual age of onset is 28 to 89 years old, and 70% to 80% of cases occur above 40 years old, with a peak age of 48 to 59 years old. Women are more likely to suffer from trigeminal neuralgia than men. Trigeminal neuralgia will initially cause you to experience a brief period of mild pain. The pain is cyclical and attacks can vary from days, weeks to months, with periods of remission as normal. The disease can then gradually progress, causing longer, more frequent pains. The nature of the pain can be described as a cutting, discharge, or pins-and-needles pain that comes on suddenly and unexpectedly, and is called the “number one pain in the world”, which is even worse than childbirth pain. The pain can sometimes be triggered by the airflow when washing, brushing, touching, drinking, eating, or even talking, and can be described as “trigger point” pain. The pain is described as “trigger point” pain. As the disease progresses, the duration of the attack lengthens, the interval shortens, and the attack becomes persistent, and rarely resolves itself. If you have this type of pain, you should seriously consider whether you have “trigeminal neuralgia”, especially if you have “toothache” that is not cured for a long time.