What are canker sores?

Canker sores are ulcers about 1 to 2 mm in diameter that develop on the buccal mucosa (mouth, tongue, lips, gums). They appear singly or in groups dispersed.

Each ulcer forms a small crater surrounded by a yellowish-red halo.

Canker sores are not dangerous to health but can be very painful. They are not contagious or infectious
What are the causes?

The origin of canker sores is unknown but there are triggers:

* stress and physical fatigue.

* allergy or food sensitivity. The foods most often implicated are spices, acidic foods, citrus, pineapple, dried fruits and special nuts, tomatoes, alcohol, chewing gum, meat, dairy and gluten.

* certain nutritional deficiencies. Studies associate the pathos stalactites with deficiencies in iron, folic acid, vitamins B1, B2, B6 and B12.

* hormonal changes related to menstrual cycle. Women are also more prone to canker sores as men.

* dentures are inadequate or improper use of the toothbrush.

* Use a toothpaste containing sodium laurel sulfate as detergent agent (all studies are not consistent about this).

* certain drugs.

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