What causes rotten corners of mouth

Many friends may have experienced this, that is, the corners of the mouth are rotten. If the area is large, it will also affect eating. There are generally three reasons for sore corners of the mouth: mechanical reasons, nutritional deficiencies, and viral infections. Comprehensive screening to find out the causes will help with treatment.

1. Mechanical factors

Improper tooth position causes the upper lip to overlap the lower lip, causing wrinkles at the corners of the mouth, and the mucosa there is often immersed.

2. Nutritional Deficiency

Riboflavin deficiency may be accompanied by symptoms such as strawberry tongue and scrotal itching. Excessive physical exertion or physical weakness, malnutrition, insufficient supply of iron and protein, and deficiency of multiple vitamins such as niacin and vitamin B6 can cause this disease.

3. Infection

The pathogens are mostly low-toxic staphylococci or Candida albicans, which are more common in children. Certain skin diseases, such as atopic dermatitis, seborrheic dermatitis; sialorrhea infiltrating the corners of the mouth; biting fingers and pens, etc. can also cause this disease.