03/06/2025
Canker sores are a prevalent oral condition, affecting approximately 20% of the population at some point in their lives.
They typically appear as round or oval ulcers with a white or yellow center and a red border.
These sores can develop on the inside of the cheeks, lips, under the tongue, or at the base of the gums.
Most canker sores heal on their own within one to two weeks.
✅ Common Causes
While the exact cause of canker sores remains unclear, several factors may trigger their development:
✔ Minor Oral Injuries
Accidental bites, dental work, or aggressive tooth brushing can damage the mucous membrane, leading to sores.
✔ Nutritional Deficiencies
Lack of essential nutrients like vitamin B12, zinc, folic acid, and iron may contribute to the formation of canker sores.
✔ Stress and Hormonal Changes
Emotional stress and hormonal fluctuations, particularly in women, have been associated with the occurrence of canker sores.
✔ Food Sensitivities
Certain foods, including citrus fruits, tomatoes, chocolate, coffee, strawberries, eggs, nuts, and cheese, can trigger canker sores in some individuals.
✔ Toothpaste and Mouth Rinses
Products containing sodium lauryl sulfate (SLS) may irritate the oral tissues and lead to sores.
✔ Underlying Health Conditions
Diseases such as celiac disease, Crohn's disease, and HIV/AIDS can cause recurrent canker sores.
