Tongue is painful but there is no wound may be related to trauma, oral inflammation, tongue disease and other reasons. 1. Trauma: when a person accidentally bites his tongue, it can cause symptoms of tongue pain, but there may be no wound. 2. Oral inflammation: such as tonsillitis or inflammation of the gums, etc., may cause tongue pain without wounds due to the stimulation of inflammation in the mouth. 3. Diseases of the tongue: for example, papillitis of the tongue, due to the fact that the bacillary papillae are rich in pain receptors, there will be localized pain during inflammation, but there is no wound. It is recommended that those who have tongue pain but no wound go to the regular hospital in time to clarify the cause of the disease and carry out standardized treatment under the guidance of the doctor, so as to avoid delaying the condition.