Why do you get mouth ulcers?

Mouth ulcers, also known as canker sores, are common, painful sores that can develop on the inside of the mouth. They can be caused by a variety of factors, including:

* Trauma: Biting the inside of your mouth, brushing your teeth too vigorously, or wearing dentures that don't fit properly can all cause mouth ulcers.

* Illness: Canker sores are also often associated with certain illnesses, such as the common cold, influenza, and Crohn's disease.

* Nutritional deficiencies: A lack of certain vitamins and minerals, such as vitamin B12, iron, and folate, can lead to mouth ulcers.

* Hormonal changes: Women are more likely to develop mouth ulcers during menstruation or pregnancy.

* Stress: Stress can trigger mouth ulcers in some people.

* Food allergies: Some people develop mouth ulcers after eating certain foods, such as nuts, chocolate, and coffee.

* Medical conditions: Certain medical conditions, such as celiac disease, Behçet's disease, and HIV/AIDS, can also cause mouth ulcers.

In most cases, mouth ulcers are harmless and will resolve on their own within a few weeks. However, they can be painful and make it difficult to eat and drink. If you have frequent mouth ulcers, talk to your doctor.