Common signs and symptoms of glossitis are:

• Erythematous, swollen tongue
• Tender tongue
• Pale or patchy white tongue 
• Burning sensation [8]
• Dysphagia
• Odynophagia 
• Difficulty in mastication 
• Abnormally smooth surface of tongue
• Difficulty in speaking 

Workup consists of a detailed history and physical examination.

Laboratory Tests

• Laboratory tests are generally not required as a physical examination is sufficient to form a diagnosis. 
• A swab and culture may be performed, if needed.
• Complete blood count  
• Hemoglobin levels 

Imaging 

• Imagined studies are not required.

Test results

• Tongue lesions of unclear etiology may require biopsy or referral to an oral and maxillofacial surgeon, head and neck surgeon, or a dentist experienced in oral pathology [1]. In most cases however, a physical exam provides enough data to start appropriate treatment.

Frequently no medical intervention is required because the lesion is benign and most often asymptomatic [1]. However, Sigal and Mock reported treatment with topical and systemic antihistamines for geographic tongue [10]. Depending on the etiology and type treatment may also include corticosteroids, antibiotics, antifungal medication. An underlying condition must be identified and treated accordingly.   

The prognosis of glossitis is excellent. In most cases, it heals on its own and no treatment is required. In other cases, topical agents or oral antibiotics may be used, giving excellent results.

Complications

Glossitis is often a symptom of other conditions [9] such as:

• Irritants like tobacco, spicy food, etc.
• Allergic reactions to medicine or certain food items
• Allergic reaction to oral health products
• Injury to ill-fitting dental dentures or braces
• Hormonal disorders
• Vitamin deficiencies 
• Sjogren syndrome
• Bacterial, viral or fungal infections, etc.

These conditions may go undiagnosed or untreated and may cause complications. Glossitis, on its own however, is not known to cause any complications.

Atrophic tongue associated with pain with eating, even though it is mild atrophic change, has a high probability of being a candida-induced lesion [3].

Common etiologies of glossitis include bacterial, viral or fungal infection, vitamin deficiency, anemia, scarlet fever, kawasaki disease and Sjögren syndrome.

Glossitis characterized by ulcerative lesions (sometimes along the lateral borders of the tongue), may also be seen with jagged various teeth, ill fitting dentures, and, rarely with syphilis, inhalation burns, or ingestion of corrosive chemicals [4].

Incidence

One review reported overall prevalence ranges of 0.1 to 14.3% for geographic tongue, 1.3 to 9.0% for atrophic tongue, and 0.0 to 3.35% for median rhomboid glossitis [2].

Sex

Glossitis shows a predilection to the female gender.

Age

Glossitis can occur at any age, but it usually affects adult more often.

Atrophic glossitis

Atrophic glossitis is the consequence co-affected by host circumstances of oral cavity and bacteria [5]. In this condition, there is total atrophy of the lingual papillae resulting in a smooth, glossy tongue. It is most often due to vitamin deficiency anemia (pernicious anemia).

Median rhomboid glossitis (MRG)

MRG is an uncommon lesion and when improperly diagnosed may become confused with carcinoma [6]. It is due to infection by the fungus Candida albicans and occurs in the middle of tongue, in front of the circumvallate papillae.

Strawberry tongue

In this type, there is hyperplasia of the fungiform papillae resulting in a swollen, beefy tongue. It may be subdivided into white strawberry tongue, where there is a layer of white on the dorsum of tongue from which the hyperplastic papillae protrude upwards. The other subtype is the red strawberry tongue, where the white layer disappears and only the dark red papillae are apparent. This condition is associated with scarlet fever, Kawasaki disease, pernicious anemia and other diseases.

Benign migratory glossitis or Geographic tongue

Classic appearance of a geographic tongue includes a patch of an erythematous lesion having atrophic filliform papillae, which is surrounded by a white hyperkeratotic boundary. Associations with human leukocyte antigen HLA DR5, HLA DRW6 and HLA Cw6 have been reported [7].

Maintaining a good oral hygiene may prevent glossitis. Regular visits to a dentist and keeping a healthy life style to prevent any vitamin deficiencies may also help in preventing this condition.

Glossitis refers to inflammation of the tongue which may or may not be associated with systemic disease. Although easily examined, abnormalities of the tongue can present a diagnostic and therapeutic dilemma for physicians [1].

Definition

Glossitis is an inflammation of the tongue which is associated with a number of conditions and diseases. It is also known as glossodynia, burning tongue syndrome and smooth tongue.

Cause

Glossitis may be due to infection, irritation of the tongue by ill fitting dentures, tobacco, spicy food, etc or it may be a symptoms of underlying disease such as vitamin B12 deficiency, Sjögren's syndrome, etc.

Symptoms

Symptoms include a pale or beefy red tongue which is painful and makes it difficult to chew, swallow and/or speak.

Treatment

Treatment is not required as it heals on its own. Topical drugs and antibiotics may help if it is due to an infection.

Prevention

A good oral hygiene, maintained by proper brushing and flossing of teeth along with regular visits to your dentist may prevent glossitis.

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3. Terai H, Shimahara M. Atrophic tongue associated with Candida. J Oral Pathol Med. 2005 Aug;34(7):397-400. 
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10. Sigal MJ, Mock D. Symptomatic benign migratory glossitis: report of two cases and literature review. Paediatr Dent. Nov-Dec 1992;14(6):392-6