Trigeminal neuralgia is a severe pain that is distributed on one side of the patient’s face, but many times trigeminal neuralgia is easily confused with toothache because sometimes trigeminal neuralgia also manifests as tooth pain. Then many patients have a question, so how to confirm the diagnosis of trigeminal neuralgia? The famous craniofacial neurologist, the top expert in the field of trigeminal neuralgia treatment, and the chief expert in neurosurgery, Prof. once introduced a small trick to distinguish trigeminal neuralgia from toothache in a TV talk show, and that is to eat ice cream. This is because trigeminal neuralgia is not sensitive to hot and cold stimulation, while a toothache will definitely trigger pain if you eat ice cream for cold stimulation. Of course, this is only a small method, how to diagnose trigeminal neuralgia, or should promptly go to the hospital to find a professional doctor to confirm the diagnosis. Generally, an experienced doctor can make an accurate judgment based on the symptoms and location of the pain, for example, trigeminal neuralgia is like a knife cut, stabbing lightning-like or burning pain, and then the diagnosis can be made based on its distribution area. Of course, CT and MRI examinations may also be required to exclude other organic lesions and intracranial vascular malformations, and sometimes to clarify the anatomical relationship of the vascular nerves. After understanding how to diagnose trigeminal neuralgia, it is the question of how to treat it. At present, neurosurgery is the more successful unit in the treatment of trigeminal neuralgia, and the microvascular decompression is the standard method recognized by the medical community for the eradication of trigeminal neuralgia, which is the only eradication treatment for the cause of trigeminal neuralgia, with a cure rate of more than 98%, with immediate effect and rare recurrence.