As the saying goes, “a toothache is not a disease, but a pain that kills you”, toothache is one of the most common symptoms of dental diseases in dentistry. Many dental diseases can cause toothache, the common ones are tooth decay, acute pulpitis, chronic pulpitis, periodontitis, gingivitis and so on. Toothache, afraid to open your mouth, afraid to eat! What to do? Tooth extraction! So a poor tooth was pulled out with an order! But after the extraction, it still hurts. What you need to know is that other diseases that can trigger toothache include trigeminal neuralgia, osteomyelitis of the jaw, dry socket, pericoronitis of wisdom teeth, acute suppurative maxillary sinusitis, malignant tumors of the jaw, malignant tumors of the gums, tooth-containing cysts of the jaw, upper respiratory tract infection, heart disease, leukemia, hysteria, neurasthenia, etc., as well as hypertension patients with dental pulp congestion, diabetes patients with inflammation and necrosis of the dental pulp vessels can cause toothache . Therefore, toothache is not always caused by dental diseases, but also by heart disease. Angina can be in the sternum or precordial region, or it can radiate to the jawbone or teeth, and the brain can sometimes generate false signals that it is a toothache. Patients with toothache can carefully analyze their own situation to see if they have other symptoms besides toothache, such as chest tightness, difficulty in breathing and other symptoms of heart disease, and go to the hospital as soon as possible. Trigeminal neuralgia is also often mistaken for toothache. Trigeminal neuralgia is also called “the world’s first pain”, and as the name suggests, the pain is really life-threatening, and patients often feel the same pain as if their faces were being stabbed with an awl or cut. Many patients think they have a toothache, so they take a bunch of toothache medications, but they don’t work, and finally they find out that it is trigeminal neuralgia that is causing the problem. Differentiation between toothache and trigeminal neuralgia: The three branches of the trigeminal nerve are distributed in the frontal, maxillary and mandibular skin as well as the upper and lower gums. Trigeminal neuralgia is mainly caused by vascular compression of the intracranial segment of the trigeminal nerve, mostly unilateral pain, and pain on both sides is relatively rare but also present. Trigeminal neuralgia often manifests as upper and lower jaw, facial pain or even toothache. Timely identification of toothache and trigeminal neuralgia is very important for treatment and can be simply identified according to the following aspects: 1. pain relief: if the toothache does not improve after taking common painkillers, it can be ruled out as tooth inflammatory pain but nerve pain. 2. Local performance: toothache caused by cavities, periodontitis and other related inflammation can be found on the teeth as a continuous attack, and the condition will be aggravated by hot and cold stimulation. If the tooth is still painful without the above mentioned manifestations, it may be caused by trigeminal neuralgia. 3. Nature of pain: The pain caused by tooth inflammation usually shows continuous pain, while the pain of trigeminal neuralgia is a burst, not continuous. The pain is often without aura, but sudden lightning-like pain like cutting, burning, stabbing, electric shock, intense and unbearable, usually lasts for a few seconds, several times a day, making it unbearable. Sometimes “trigger points” can be found, i.e., trigger points, and stimulation of these points can cause painful episodes, but the episodes have just passed, and then stimulation of the “trigger points” does not cause episodes. Based on the above points, if you suspect trigeminal neuralgia, it is best not to pluck your own teeth first, but to go to the neurosurgery department as soon as possible.