Mouth sores are painful ulcers found on the cheeks, lips, gums, tongue, bottom of the mouth, and the soft palate. These sores can be caused by a variety of factors, ranging from stress to gastrointestinal diseases. Mouth sore symptoms typically include a burning or tingling sensation inside the mouth followed by painful, sensitive ulcers. In more severe cases, mouth sores can be accompanied by swollen lymph nodes, physical fatigue, and fever.
What Causes Mouth Sores?
Common mouth sore causes include: biting your tongue, lip, or cheek; burning your mouth when attempting to eat hot food or beverages; or tissue trauma from braces, dentures, and other potentially sharp objects. Mouth sores can also be related to the consumption of acidic foods and drinks.
Canker Sores Causes
There is no known cause for canker sores. They appear as pale gray ulcers with a red outer ring. Unlike cold sores, for which they are sometimes mistaken, canker sores are not contagious, but are thought to be brought on by a variety of triggers, including:
Weakened immune system (due to a viral infection)
Sensitivity to acidic foods
Poor diet lacking in certain vitamins and minerals, such as vitamin B12
Sodium lauryl sulfate (found in toothpastes and mouthwashes)
Research has also associated canker sores with several inflammatory diseases like Crohn’s disease, ulcerative colitis, Celiac disease, and Behcet’s disease, plus diseases related to a suppressed immune system, such as HIV/AIDS.
Cold Sores Causes
Cold sores appear as small fluid-filled ulcers around the lips. They are caused by the herpes simplex virus and are extremely contagious. The virus can lay dormant for years after the initial infection, but can reappear as cold sores triggered by:
Weakened immune system
Cold sore symptoms include an initial itching/ting