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The aim this article is to investigate the link between geographic tongue and psoriasis skin disease. Our review paper of the literature will handle strict study about the relation between geographic tongue and psoriasis. Our search has identified only limited studies available in English written literature starting from 2006-2013 using pubMed – indexed for MEDLINE. The result of this review suggests that geographic tongue may be an oral manifestation of psoriasis.There is no clear evidence in literature about association with gender and aetiology except one study which shows that benign migratory glossitis is more prevalent in young, nonsmoker and atopic or allergic individuals. Treatment for oral lesions is not standardized. A geographic tongue is significantly more frequent in psoriatic patients but only a limited data is available to date to strongly validate the association between these two entities.We recommend the general practitioner to have a good understanding about the clinical presentation, pathogenesis, diagnosis and treatment of this lesion. Psoriatic patients should be encouraged to undergo routine dental checkups.