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The causes of oral erosions and ulcers are diverse and can be broadly categorized into several groups:

Chronic conditions such as Recurrent Aphthous Stomatitis (canker sores), Oral Lichen Planus, Pemphigus Vulgaris, and Mucous Membrane Pemphigoid are characterized by recurring erosive or ulcerative patterns. These often require long-term management with corticosteroids or immunomodulators.

Oral ulcers can be "sentinel" signs of gastrointestinal diseases (Crohn’s disease, Celiac disease) or hematological deficiencies (anemia, vitamin B12 deficiency). Crucially, a non-healing, indurated ulcer must always be evaluated for Squamous Cell Carcinoma. Download Г‰rosions ulcГ©rations muqueuseorale pdf

The oral mucosa serves as a vital protective barrier, yet it is frequently the site of various pathological conditions. Among these, erosions and ulcerations are the most common clinical manifestations. While the terms are often used interchangeably, they represent distinct histological processes: an erosion is a superficial loss of the epithelium that does not penetrate the basal layer, whereas an ulceration is a deeper defect that extends into the underlying dermis or lamina propria. Understanding these lesions is critical for clinicians, as they can range from minor localized traumas to early signs of systemic disease or malignancy.

This is the gold standard for chronic or suspicious lesions to rule out malignancy or specific autoimmune bullous diseases. The causes of oral erosions and ulcers are

Identifying the number, size, and location of the lesions. For example, aphthous ulcers usually appear on non-keratinized mucosa (cheeks, floor of the mouth), while herpetic lesions often affect keratinized tissue (hard palate, gingiva).

The primary symptom of these lesions is pain, which often interferes with basic functions such as eating, speaking, and swallowing. Histologically, the loss of epithelial integrity exposes nerve endings in the connective tissue to the oral environment. The inflammatory response that follows leads to the characteristic "fibrinous base"—the yellowish-white coating seen on many ulcers—surrounded by an erythematous (red) halo. Crucially, a non-healing, indurated ulcer must always be

Erosions and ulcerations of the oral mucosa are more than just local discomforts; they are clinical windows into a patient's overall health. While many are benign and self-limiting, the clinician’s role is to distinguish between common trauma and signs of more serious systemic or neoplastic processes. Effective management relies on an accurate diagnosis, shifting from simple topical analgesics for minor ulcers to systemic immunosuppression or surgical intervention for complex cases.