1. Mouth ulcers  (Trust Mark: Doctor-Reviewed)
Mouth ulcers are sores or open lesions in the mouth. (See also mouth sores or canker sores)• Reviewer: Linda Vorvick, MD, Family Physician, Seattle Site Coordinator, Lecturer, Pathophysiology, MEDEX Northwest Division of Physician Assistant Studies, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

2. Glossitis  (Trust Mark: Doctor-Reviewed)
Glossitis is a condition in which the tongue is swollen and changes color. Finger-like projections on the surface of the tongue (called papillae) are lost, causing the tongue to appear smooth. See also: Geographic tongue• Reviewer: James L. Demetroulakos, M.D., F.A.C.S., Department of Otolaryngology, North Shore Medical Center, Salem, MA. Clinical Instructor in Otology and Laryngology, Harvard Medical School. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.