What causes angular cheilitis?
Disease description:
I noticed that the corner of my mouth has recently become sore and it's quite painful. I'd like to ask the doctor, what causes sores at the corners of the mouth?
Doctor's answer (1)
Dr. Liu Chao
Angular cheilitis, medically termed as inflammation of the corners of the lips, is usually caused by various factors affecting the skin and mucous membranes of the lips. Common causes include:
1. Insufficient humidity: Dry environments or prolonged lip licking leading to moisture loss can cause dryness and cracking of the lip skin.
2. Nutritional deficiencies: Particularly a lack of vitamin B2 and iron, which can impair normal skin and mucous membrane metabolism, making one susceptible to angular cheilitis.
3. Fungal infection: Infection with yeast such as Candida albicans is a common cause, especially in warm and moist environments.
4. Poor oral hygiene: Accumulation of food debris at the corners of the mouth promotes bacterial growth and can lead to infection.
5. Allergic reactions: Certain cosmetic or toothpaste ingredients may trigger allergic reactions causing inflammation at the corners of the mouth.
Recommendations for daily care:
1. Maintain oral hygiene and avoid food residue remaining at the corners of the mouth.
2. Consume foods rich in vitamin B2, such as lean meat, egg yolks, green leafy vegetables, and whole wheat products.
3. Use lip balm to keep the lips moisturized and avoid frequent lip licking.
4. If symptoms persist or are accompanied by pain and swelling, seek medical attention promptly.
