Whenever you eat something, the mouth will grow bubbles, mainly consider herpetic disease and traumatic mucosal blood blisters and other causes. 1. Herpetic disease: for example, pemphigus, pemphigoid, etc., can lead to the oral mucosa connection loosening, so that the liquid is retained here, thus forming bubbles. At this time, it is recommended to go to the hospital stomatology department in order to diagnose the cause of the disease and timely treatment. 2. Traumatic mucosal blisters: when the teeth have sharp cusps or marginal ridges, often eat some too hot and too hard food, chewing can make the oral mucosa by repeated friction, resulting in the accumulation of submucosal fluid, thus forming blisters. 3. When you eat something, it is recommended to avoid eating too hot and hard food, minimize spicy and stimulating food, pay attention to oral hygiene, and generally the blisters can gradually subside. If the blisters do not subside, it is recommended to consult a doctor immediately to clarify the cause of the disease and carry out targeted treatment.