What causes frequent mouth ulcers?

Oral ulcers, also known as recurrent aphthous ulcers, are a common type of oral mucosal disease. They are characterized by round or oval superficial ulcers on the oral mucosa, with red and swollen edges, central depression, and significant pain. Frequent oral ulcers may have the following causes:

1. Genetic factors: Oral ulcers are closely related to heredity. A family history of recurrent oral ulcers may exist.

2. Immune factors: When immunity decreases, the body becomes more susceptible to viral infections, leading to oral ulcers. The loss of immune proteins can cause immune dysfunction and imbalance, accelerating the occurrence of ulcers.

3. Psychological factors: Negative emotions such as excessive work pressure, anxiety, tension, and depression can also reduce the body's immune function, triggering oral ulcers.

4. Dietary factors: Consistently picky eating habits can lead to nutritional imbalances in the body. Deficiencies in nutrients such as iron, zinc, vitamin B12, and folic acid can also increase the risk of oral ulcers.

5. Lifestyle habits: Poor lifestyle habits such as frequent late-night awakenings, lack of sleep, and irregular作息 (作息 should be translated as "作息" here, but since it's within an HTML paragraph, it's better to keep it as is or replace with "lifestyle habits") can increase the frequency of oral ulcers.

Oral ulcers are associated with multiple factors. Patients are advised to maintain good lifestyle habits, eat a balanced diet, exercise moderately, ensure adequate sleep, avoid excessive fatigue and mental stress, and seek medical attention when necessary.