What Causes Mouth Ulcers?

People commonly say, “Disease enters through the mouth.” As living standards improve, the variety of available foods increases, and irregular daily routines have become commonplace. Consequently, many illnesses enter the body via the oral cavity—especially oral ulcers, which can cause significant discomfort and harm to patients. So, what causes oral ulcers?

What Causes Oral Ulcers?

Oral ulcers may be associated with gastrointestinal disorders, endocrine imbalances, psychiatric conditions, or deficiencies in trace elements. Conditions such as gastric ulcers, ulcerative colitis, Crohn’s disease, duodenal ulcers, and hepatitis have all been linked to oral ulcers. Some women experience hormonal fluctuations during menstruation, predisposing them to oral ulcers. Additionally, psychological stress, emotional instability, and poor sleep quality may trigger oral ulceration. Deficiencies in trace elements—including zinc, iron, folic acid, and vitamin B₁₂—may contribute to recurrent oral ulcers.

Patients may soak a mixture of lily bulbs, Ophiopogon tuber (Maidong), mung beans, black beans, black sesame seeds, sago, goji berries, coix seed (Yi Yi Ren), and black rice overnight, then blend the mixture thoroughly in a soy milk maker. Consume one large cup of this liquid once daily. After continuous use for three to five days, oral ulcers often resolve. Alternatively, patients may follow their physician’s guidance for targeted pharmacological treatment.

In daily life, patients should consume light, easily digestible foods, ensure adequate rest, and pay attention to weather changes. Engaging in outdoor aerobic exercise helps strengthen immunity, and supplementation with vitamin C may also be beneficial. We hope this information proves helpful to you.