There are many kinds of diseases that may cause pain at the root of the tongue, and different treatment measures need to be taken for different diseases. The more common clinical ones are as follows: First, ulcers appear at the root of the tongue. Ulcers are clinical symptoms of red, yellow, concave and painful localized on the surface of the tongue, which can be diagnosed by the naked eye. If it is an ulcer, spray open throat sword spray, watermelon cream spray, apply chlorhexidine mouthwash, it will heal in about 10 days. Second, the tongue papillae at the root of the tongue is inflamed, the tongue papillae are in the back of the tongue in a herringbone arrangement, the head is relatively large, if the local redness, swelling, pain, there may be inflammation of the tongue papillae, then you can also spray open throat sword spray, generally in about a week will heal. Third, there is a part of the appearance of linguopharyngeal neuralgia, this disease is a neurological disease, you need to go to the neurology department, oral carbamazepine and other pain relief.