What Causes Recurrent Mouth Ulcers?

Jun 02, 2022 Source: Cainiu Health

Dr. Zhang Liwen

Introduction

Recurrent oral ulcers—occurring frequently, such as “every few days”—are commonly caused by recurrent aphthous ulcers or compromised immune function. Recurrent aphthous stomatitis is characterized primarily by its recurrent, self-limiting, and self-resolving nature. It follows a cyclical pattern, with oral ulcers recurring repeatedly in affected individuals. These ulcers are typically accompanied by marked burning pain, significantly impairing eating and speech, thereby adversely affecting patients’ quality of life.

Oral ulcers, commonly referred to as stomatitis, are a relatively common ulcerative condition affecting the oral mucosa. They typically occur on the inner lips, tongue, ventral surface of the tongue, buccal mucosa, and other sites. Some patients experience recurrent oral ulcers—occurring frequently, sometimes every few days. So, what causes such frequent recurrence?

What Causes Frequent Recurrent Oral Ulcers?

Frequent recurrent oral ulcers are often associated with recurrent aphthous ulcers (RAUs) and compromised immune function. Recurrent aphthous stomatitis is characterized by its tendency to recur, its self-limiting nature, and spontaneous resolution. It follows a cyclical pattern, with ulcers recurring repeatedly in the oral cavity. Patients commonly experience significant burning pain, severely impairing eating and speech—and thereby diminishing quality of life. The etiology of oral ulcers is multifactorial and may involve local trauma, psychological stress, dietary factors, hormonal fluctuations, and other triggers. Treatment is complex and lacks standardized or curative approaches.

Watermelon spray (a traditional Chinese medicine preparation) may be used to treat oral ulcers, and combining it with anti-inflammatory medications can effectively alleviate ulcer symptoms. Oral ulcers arise from excessive bacterial colonization on the oral mucosal surface, triggering both ulcer formation and inflammatory responses. Appropriate use of anti-inflammatory agents can effectively suppress bacterial growth. For recurrent oral ulcers, timely treatment is essential—including assessment of serum vitamin levels and targeted vitamin supplementation. Strengthening immune function and maintaining the integrity of skin and mucosal barriers help prevent ulcer recurrence.

Persistent, long-standing oral ulcers may signal oral epithelial cell dysplasia or even malignancy. Patients should seek prompt medical evaluation and undergo biopsy to rule out neoplastic disease. Additionally, patients should adhere to a bland, non-irritating diet and maintain rigorous oral hygiene. We hope this article has been helpful to you!

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Causes of Recurrent Mouth Ulcers

The most common type of oral ulcer is the aphthous ulcer, also known as recurrent aphthous stomatitis (RAS). The precise etiology of RAS remains unclear but is generally attributed to a triad of factors: genetic predisposition, environmental triggers, and immune dysregulation. In genetically susceptible individuals, environmental factors can provoke an aberrant immune response, leading to the characteristic lesions of oral ulcers—namely, the interplay between genetic and environmental factors.

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What Causes Recurrent Oral Ulcers?

Recurrent oral ulcers are often caused by deficiencies of trace elements such as vitamin B and vitamin C in the patient’s body. In such cases, patients should consume more foods rich in vitamins to replenish these essential micronutrients and thereby address the underlying cause. Additionally, some patients may develop recurrent oral ulcers due to excessive daily stress or poor mental health.

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What Causes Recurrent Mouth Ulcers?

The exact cause of oral ulcers remains unclear; however, the majority of cases are associated with psychological factors such as mental stress, anxiety, and poor sleep. Additionally, local irritants—including residual tooth roots or crowns, ill-fitting dental restorations, and dental calculus—can also contribute. Trauma is another potential cause: for instance, accidentally biting the lip mucosa may lead to ulcer formation at the site of the wound.