What is the cause of tongue cracking?

Tongue coating cracking is a grooved tongue, the surface of the tongue has cracks, the cause is not clear, may be related to viral infection, bacterial infection, genetic or immune factors, may be accompanied by map tongue. Grooved tongue without symptoms do not need to be treated, but grooves in the easy residue of soft dirt, food residue caused inflammation. If accompanied by inflammation, pain, it is recommended to pay attention to oral hygiene, timely gargle, tongue bulging, with sodium bicarbonate, chlorine has been set gargle, oral anti-inflammatory drugs. The above health science popularization knowledge is for reference only. The specific situation needs to be examined in a regular hospital and judged by a professional doctor.