The possible reasons for the tongue always breaking include damage caused by external factors, and can also be caused by diseases such as mouth ulcers and lingual inflammation. If there is the phenomenon that the edge of the teeth is too sharp, it can rub against the tongue frequently and appear the phenomenon of broken tongue, you can polish the teeth appropriately to alleviate such phenomenon. In addition, if there are oral ulcers, easy to appear tongue broken phenomenon, and infection, endocrine changes, external stimuli, mental factors and so on. If tongue inflammation exists, it can be caused by iron deficiency, vitamin deficiency, anemia, and infection. If there is a phenomenon of frequent rupture of the tongue, you should go to the hospital in time for examination to clarify the cause and then carry out the appropriate treatment.