What condition can angular cheilitis be caused by?

Angular cheilitis is a condition characterized by inflammation and cracks at the corners of the mouth. It can result from various factors, but a significant cause is nutritional deficiency, particularly deficiencies in vitamins such as riboflavin (vitamin B2), iron, and certain other B vitamins. These nutrients play essential roles in maintaining the health of the skin and mucous membranes, and their insufficiency can lead to lesions in sensitive areas like the corners of the mouth.

Inadequate nutrition can result from various dietary habits, malabsorption issues, or certain medical conditions that impair nutrient uptake. When the body lacks these vital nutrients, it may struggle to heal and maintain skin integrity, making it more susceptible to various issues, including angular cheilitis.

While excessive salivation, skin allergies, and infections can also contribute to or exacerbate angular cheilitis, they are not primary causes in the same way that nutritional deficiencies are recognized for this condition. Therefore, understanding the link between nutrition and skin health is crucial for recognizing the causes of angular cheilitis and emphasizing the importance of adequate dietary intake to prevent such conditions.