A white layer on the lips is usually caused by lipitis, fungal infections, external irritation and other factors.
1. Lipitis: an inflammatory disease that occurs in the lips. The cause of the disease is still unclear, usually induced by environmental factors, climate change, local stimulation, mental factors, improper diet and other reasons, manifested as repeated dryness of the lips, flaking, itching, pain and other symptoms.
2. Fungal infection: after infection of the mucous membrane of the lips with fungi, it can cause local necrosis of the skin and mucous membrane, and white secretion can appear on the surface, clinically, it is mostly due to Candida albicans infection.
3. External stimulation: due to the lips contact with a large amount of salt, vinegar and other stimulating food, can lead to changes in the skin of the lips, become white. In addition, the weather is too dry and the lips are dehydrated, resulting in a layer of white stuff.
In addition, there are other reasons for white things on the lips, the patient should not be taken lightly, early medical treatment, clear cause.