Glossitis can mean soreness of the tongue, or more usually inflammation with depapillation of the dorsal surface of the tongue (loss of the lingual papillae), leaving a smooth and erythematous (reddened) surface, (sometimes specifically termed atrophic glossitis). In a wider sense, glossitis can mean inflammation of the tongue generally. Glossitis is often caused by nutritional deficiencies and may be painless or cause discomfort. Glossitis usually responds well to treatment if the cause is identified and corrected. Tongue soreness caused by glossitis is differentiated from burning mouth syndrome, where there is no identifiable change in the appearance of the tongue, and there are no identifiable causes. Symptoms
Depending upon what exact meaning of the word glossitis is implied, signs and symptoms might include:

Smooth, shiny appearance of the tongue, caused by loss of lingual papillae. Tongue color changes, usually to a darker red color than the normal white-pink color of a healthy tongue. Tongue swelling. Difficulty with chewing, swallowing, or speaking (either because of tongue soreness or tongue swelling). Burning sensation. Some use the term secondary burning mouth syndrome in cases where a detectable cause, such as glossitis, for an oral burning sensation.Depending upon the underlying cause, there may be additional signs and symptoms such as pallor, oral ulceration and angular cheilitis. Causes
Anemias
Iron-deficiency anemia is mainly caused by blood loss, such as may occur during menses or gastrointestinal hemorrhage.
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