A meatball on the inner wall of the lower jaw of the mouth will increase in size when eating, which is considered to be salivary stone disease, caused by the blockage of the duct of the submandibular gland. The inner wall of the lower jaw is also the bottom of the mouth, there are submandibular gland ducts from the back to the front above the opening in the sublingual caruncle, under normal circumstances for the tongue tie on both sides of the light pink ball of flesh, soft to the touch, no pressure pain and redness. However, if there are more inorganic salts in saliva, coupled with the physiological and anatomical characteristics of the ducts, submandibular gland stones may be formed. Submaxillary gland stones are characterized by enlargement of the sublingual caruncle at the floor of the mouth, pain on touch and hardness when eating and drinking due to the blockage of salivary secretion by stones, and the pain and swelling disappears when eating and drinking is over. Chronic inflammation will form after repeated attacks for a long time, so it is recommended to consult a doctor as soon as possible for examination and treatment.