Health Tip: Triggers for Canker Sores

Factors that could increase your risk

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(HealthDay News) -- Canker sores are the painful white patches that appear on the insides of the cheeks, lips, gums or tongue.

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The U.S. National Library of Medicine says these factors may increase your risk of getting canker sores:

• A family history of canker sores.
• A weakened immune system.
• A bite on the inside of the cheek or the tongue.
• Having dental work.
• Stress or changes in hormone levels.
• Deficiencies in vitamins or minerals such as iron, folic acid, or B-12.
• Food allergies.
• Having a viral infection.

-- Diana Kohnle