mouth ulcer with at interior of the mouth, mouth ulcer to the top of tongue and in the mouth, mouth ulcer, which is the origin of mouth ulcer

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What is the mouth ulcers? The mouth ulcers are ulcers d’ approximately 1 to 2 mms in diameter which develops on the oral mucous membranes (stops, language, lips, gums). They appear separately or in dispersed group. Each ulcer forms a small yellowish crater surrounded d’ a red halation. The mouth ulcers are not dangerous for health but can be very painful. They are not contagious nor infectious
Which are the causes?
The origin of the mouth ulcers remains unknown but there exist starting factors:
§ stress and physical tiredness
§ allergy or food sensitivity. The food most often accused is the acid spices, food, the dry citrus fruits, pineapples, fruits and particularly the nuts, the tomatos, alcohol, chewings-gum, meats, dairy products and gluten.
§ some food deficiencies. Studies associate the aphthous stomatitis with Iron deficiencies, folic acid, B1 vitamins, B2, B6 and B12.
§ hormonal changes related to the menstrual cycle. The woman is elsewhere more prone to the mouth ulcers than man.
§ dental prostheses evil adapted or limproper use of the brush with tooth.
§ the use of a toothpaste containing of the lauryl sulphate of soda as detergent agent (all the studies are not concordant on this subject).
§ some drugs