Can zinc deficiency cause mouth ulcers?

Zinc deficiency can indeed potentially cause oral ulcers. Zinc is one of the essential trace elements in the human body and plays an important role in maintaining the health of the oral mucosa. When the body lacks zinc, the barrier function of the mucosa may be compromised, making the mouth more susceptible to pathogenic invasion and thus triggering oral ulcers. In addition, other causes of oral ulcers include deficiencies in iron, vitamin B1, B2, B6, B12, vitamin C, or vitamin E. For oral ulcers caused by zinc deficiency, treatment methods include zinc supplementation, such as taking zinc gluconate oral solution or zinc tablets. At the same time, maintaining good eating habits and consuming foods rich in vitamins and minerals can help strengthen immunity and prevent the occurrence of oral ulcers. Preventive measures for oral ulcers also involve maintaining good oral hygiene, avoiding mechanical injuries, and ensuring adequate sleep and regular作息 (作息 translates to作息 rhythm or作息 pattern, which can be rendered as "regular作息" or "consistent sleep-wake cycles").