Causes and Sysmptoms of Canker Sores

The majority of canker sores patient do not have any other problem as the cause. The disease is supposed as a result of response of the immune system. Other common causes may include the following:

Hormonal disorders
Bacterial infections
Tension
It may be Heredity in some cases
Some shock
Anti-inflammatory drugs (like ibuprofen) or Beta-blockers
Food allergies or sensitivities (including chocolate, nuts, acidic foods like - pineapple and many more)
Some particular toothpaste
Deficiencies of vitamin B12, iron, or Folic Acid
Also cause as result of some diseases like inflammatory bowel diseases, Celiac, AIDS, and many more...

Symptoms Of Canker Sores are:

Listlessness
Fever
Feeling run-down
Swollen lymph nodes
Burning and itchiness
Pain, particularly while eating and talking
Shallow ulcer on the tongue or inside of the cheek or lip
Uneasiness while talking and eating
It appears inside the mouth as a round white spot with a red border and large ones have an irregular shape.