Children’s itchy tongue may be caused by bacterial infection, viral infection, allergy or lack of vitamins, etc. It is recommended to go to the Oral Mucosa Department for timely examination and treatment. 1. Poor oral hygiene or indigestion may lead to disorganization of the oral flora, resulting in an itchy, dry or numb tongue. 2. Infections such as enterovirus, coxsackie virus or herpes simplex virus may produce small blisters on the tongue, which may be itchy and may have a burning sensation when they are first initiated. 3. Children may have an allergic reaction if they eat allergic foods or medications. 4. Vitamin B and C deficiencies may cause symptoms of tongue inflammation such as atrophy and redness of the tongue papillae, which may be itchy at the same time.