There are many causes of tongue pain, such as burning tongue, oral ulcers, herpes virus, papillitis of the tongue and so on. 1. Burning tongue: Burning tongue may be caused by micronutrient deficiencies, psycho-social factors, endocrine disorders and other factors, which can cause tongue pain, burning sensation, change of taste and other phenomena. 2. Mouth ulcers: If the tongue is ulcerated due to external trauma, bites and other factors, tongue pain may also occur. 3. Herpes virus: Herpes virus infection of the tongue can cause localized herpes, and when the herpes rupture can form vesicles, so there will be tongue pain. 4. Tongue papillitis: there are many papillary structures distributed on the tongue, due to various factors to stimulate the papillary structures, can lead to papillitis, which will lead to the phenomenon of tongue pain. There are many reasons for tongue pain, after the symptoms appear, it is recommended to consult a doctor in time, after a clear diagnosis, follow the doctor’s instructions to carry out standardized treatment, do not ignore the symptoms, and take it lightly.