What leads to mouth ulcers?

Tobacco & alcohol: Tobacco and alcohol cause mouth cancers that cause serious ulcers. Nutritional deficiencies, viral infections, trauma, poor oral hygiene and autoimmune disease are some of the other causes.

Virus: Mouth ulcers are usually caused by a virus related to chicken pox that lies dormant at the end of a nerve . At times of stress or if they become stimulated(iterated ) the virus becomes active travels down the root and manifest itself. These usually accure inside the mouth were it is wet . They last 10-14 days. There is medicine that you can place to coat them.

Many things: Mouth ulcers can be caused by a host of things. Most are benign but i would strongly recommend seeing a dentist if the ulcer is not painful or if it won't heal. They can also be associated with other systemic issues.

No proven cause but: Factors including: minor injury fr dental work, hard brushing, sport injury/accidental bite, toothpaste/mouth rinse w sodium lauryl sulfate, food sensitivity to acidic foods – strawberries/citrus/pineapples and trigger foods –chocolate/coffee, lack of essential vits like B-12, zinc, folate, (folic acid) and iron, allergy to mouth bacteria, hormones during menstruation, stress, bacterial/viral/fungal infections