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What is Fissured tongue and explain in detail?
Fissured tongue  is a benign condition characterized by deep grooves (fissures) in the dorsum of the tongue. Although these grooves may look unsettling, the condition is usually painless. Some individuals may complain of an associated burning sensation.It is a relatively common condition, with a prevalence of between 6.8% and 11% found also in children. The prevalence of the condition increases significantly with age, occurring in 40% of the population after the age of 40.

Presentation
The clinical appearance is considerably varied in both the orientation, number, depth and length of the fissure pattern. There are usually multiple grooves/furrows 2–6 mm in depth present. Sometimes there is a large central furrow, with smaller fissures branching perpendicularly