What Causes Recurrent Oral Ulcers?

Jun 08, 2022 Source: Cainiu Health

Dr. Zhang Liwen

Introduction

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.

Some patients experience recurrent oral ulcers during their daily work or studies, yet remain unaware of why these ulcers keep recurring. Not only do they suffer from oral pain, but eating also becomes inconvenient. So, what causes recurrent oral ulcers?

What Causes Recurrent Oral Ulcers?

Recurrent oral ulcers often result from deficiencies in trace elements—particularly vitamins B and C—in the body. In such cases, patients should increase their intake of vitamin-rich foods to replenish these essential micronutrients and thereby address the underlying cause.

Additionally, some patients may develop recurrent oral ulcers due to high levels of daily stress, poor mental health, irregular sleep patterns, or chronic sleep deprivation. Unhealthy dietary habits—such as frequent consumption of spicy, stimulating, raw, cold, or greasy foods—may further contribute to ulcer formation. For these individuals, ensuring adequate and regular sleep, maintaining a balanced and non-restrictive diet, reducing life stress, cultivating a positive mindset and emotional well-being, and engaging in moderate physical exercise are all crucial steps to enhance overall physical fitness and immune function—and thus help prevent recurrence of oral ulcers.

Lastly, recurrent oral ulcers may sometimes signal an underlying systemic disease. Therefore, if any unusual symptoms or signs appear, patients should promptly seek medical evaluation at a hospital. Appropriate diagnostic testing and treatment should be conducted under the guidance of a qualified physician. We hope this information proves 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 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.