Inflammation, cracking, and dryness of the lips that may be caused by ill-fitting dentures, a local infection, allergy to cosmetics, excessive sunbathing, or deficiency of riboflavin (vitamin B3).
n. inflammation of the lips. Angular cheilitis affects the angles of the lips and may be caused by a staphylococcal or candidal infection, though mechanical, nutritional, and immune factors may be implicated.
One of 2 fleshy folds around the entrance to the mouth. The main substructure of the lips is a ring of muscle that helps to produce speech. Smaller muscles at the corners of the lips are responsible for facial expression. Disorders of the lips include chapped skin, cheilitis, cold sores, and lip cancer.... lip
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