A short tongue is caused by a short tongue tie or a short tongue body. A short tongue tie requires lengthening and a short tongue body requires speech training. 1. Tongue tie is the fascial tissue connecting the tongue and the floor of the mouth, which can control the movement of the tongue; if the tongue tie is too short, it will not be able to extend the tongue normally and the symptoms of short tongue will appear; it is recommended to go to the doctor for tongue tie lengthening surgery to restore the normal movement of the tongue. 2. Short tongue is mainly caused by congenital heredity or tongue trauma, which cannot be restored to normal length through surgery; it is recommended to seek medical advice for speech training to correct the symptoms of dysarthria. It is recommended to consult a doctor for a clear diagnosis of the above symptoms and then carry out symptomatic treatment to avoid delaying the condition.