What Causes Mouth Ulcers?
Aphthous ulcers (canker sores) are a common condition—often, individuals discover they have developed one unexpectedly.
What Causes Aphthous Ulcers?
There are numerous causes of aphthous ulcers. In daily life, the most common cause is irritation. Irritants fall into two main categories: mechanical and thermal. Mechanical irritants include sharp-edged residual tooth crowns or roots, or poorly fitting or rough-surfaced dental prostheses. Thermal irritants primarily involve consuming excessively hot liquids or foods, which may scald the oral mucosa.

Additionally, systemic diseases can also trigger aphthous ulcers. For instance, malnutrition, deficiencies in vitamin B complex and vitamin C, or insufficient zinc levels in the body may all contribute to the development of oral ulcers. Likewise, impaired gastrointestinal digestion or compromised liver and kidney function may also lead to aphthous ulcers. During an active outbreak, patients should avoid spicy or irritating foods and instead follow a light, bland diet to prevent further aggravation of symptoms.

The medications mentioned above are for reference only. Specific drug use must be guided by a physician. If you experience any discomfort or abnormal symptoms, seek medical evaluation promptly at a hospital and undergo appropriate management under the supervision of a qualified healthcare professional. We hope this information has been helpful!