The main manifestation of a large tongue is incomplete pronunciation of the flat tongue or inability to extend the tongue outside the mouth, which is usually caused by a short sublingual tether, and can be treated surgically. 1-3 years old is the explosive period of language development in children, and some patients are caused by psychological disorders, suddenly suffering from great stress and psychological disorders, in which case it is recommended that the psychiatrist systematically guide the treatment. It may also be caused by sudden pharyngeal lesions, such as peri-tonsillitis, peri-tonsillar abscess, acute laryngitis, acute epiglottitis and other related diseases, thus leading to significant local pain and uncoordinated movements of the throat muscles, which require anti-inflammatory and anti-swelling treatment at this time. If the pronunciation is not standard, you can go to the rehabilitation department for training and treatment. If the baby’s chin is short, you can also let the baby’s chin push forward naturally when eating or talking to promote development and achieve therapeutic effects.