There are many possible culprits in the causes of gum blisters. There are a few medical conditions or disorders which may either be the cause of the sore, or aggravate them as a side effect. Something as simple as an accidental bite while chewing can cause a sore. However, repeated gum blisters could also be a telltale sign of something more serious.
One of the causes of gum blisters may be a condition which is clinically referred to as parulus. A parulus blister typically forms on the gums near an infected tooth. The decaying and infection within the tooth can cause the sensitive nerves in the area to die. The dead nerves can ooze out of the area. Considered by the body to be a toxin, the body will get rid of the dead nerves by letting them drain through the blisters. White blood cells, which are the human body’s natural defenses against infections, will arrive around the area, making pus. The parulus forms when this pus bursts through the abscess. The issue can be kept at bay with good hygiene and taking care not to damage the gums with harsh toothbrush techniques. A parulus issue requires the help of a dentist to remove the dead tooth, as well as a root canal procedure to get rid of the infected root.
There are other causes of gum blisters as well, including herpes labialis. These are common cold sores which can occur around the gums, lips, and inner mouth. They are small and often painful sores, a result of the herpes simplex virus. The sores are extremely contagious and require over-the-counter topical treatment. If they are a chronic issue, a prescription for antiviral medicine may be necessary.
Crohn’s Disease is also one of the causes of gum blisters. Although the disease is often determined by inflamed bowels, ulcers and blisters of the mouth can easily occur too. Swollen gums can accompany the symptoms, as well. The cause of Crohn’s Disease is largely unclear, but can be aided by diet change and certain medicines. Gum blisters can also be caused by injuries to the mouth. Burns sustained from too-hot or spicy food can cause them, as well as accidental bites to the inside of the mouth and harsh brushing. Orthodontic appliances which do not fit properly can also cause these painful blisters. Most blisters in and around the mouth will go away in time with little to no help. However, serious and chronic blister issues need to be examined by a medical practitioner in order to rule out the possibilities of serious underlying disorders.