Histologically, ectasia of glandular ducts and chronic sialadenitis are typical features. Therapy formerly consisted of antibiotics and locally applied corticosteroids; an optimal oral hygiene, however, is mandatory. Advanced stages have to be treated surgically. Glandular cheilitis has been considered a precancerous lesion, although no definite scientific proof has ever been presented. Cheilitis granulomatosa, cheilitis exfoliativa, and self-induced changes (Munchausen syndrome) have to be considered in the differential diagnosis of glandular cheilitis.