What Causes Recurrent Mouth Ulcers in Children?

Recurrent oral ulcers in children are a very common condition, with an incidence rate exceeding 10%. This is a recurrent ulcerative disorder. Recurrent oral ulcers are closely associated with oral hygiene—failure to rinse the mouth or neglecting to brush teeth morning and evening can promote bacterial growth in the oral cavity. When oral ulcers occur under such conditions, secondary infections may develop, potentially worsening the disease. Prolonged consumption of spicy or irritating foods can cause friction and irritation to the oral mucosa, triggering ulcer formation. Recurrent oral ulcers are linked to unhealthy lifestyle habits and dietary patterns; therefore, attention to daily habits and diet is essential to prevent recurrence.