Angular cheilitis (also called perlèche, cheilosis, or
stomatitis) is a condition with deep cracks and splits at the corners of the
mouth. If severe, the splits or cracks may bleed when the mouth is opened and a
shallow ulcer or a crust may form.
Possible causes of angular
Infection. Fungal infections are the most
common, but viral or bacterial infections can also
Nutritional deficiency of vitamin
Over-closure of the mouth in someone who has been without teeth
or dentures for some time.
In young children, the cracks and splits often begin with
lip-licking, biting the corners of the mouth, or thumb-sucking.
Treatment depends on the cause and can include lip lubrication,
antifungal and antibiotic medicine, vitamins, and dentures for a person
William H. Blahd, Jr., MD, FACEP - Emergency Medicine & David Messenger, MD
How this information was developed to help you make better health decisions.
The Health Encyclopedia contains general health information. Not all treatments or services described are covered benefits for Kaiser Permanente members or offered as services by Kaiser Permanente. For a list of covered benefits, please refer to your Evidence of Coverage or Summary Plan Description. For recommended treatments, please consult with your health care provider.