Condition guide
Fissured Tongue
Fissured tongue produces grooves on the tongue surface; trapped food can irritate them or contribute to bad breath.
[1][2]The short answer
Fissured tongue is a benign pattern of deep grooves on the tongue that can trap food debris and cause irritation or bad breath.
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What the change looks like

The DN First Look799 AED
Book The DN First LookWhat does a fissured tongue feel like?
Why do tongue fissures develop?
How should changes in the grooves be followed?
The depth and pattern of fissures can vary. The useful question is whether pain, redness, coating, or a new change has developed; these sources do not provide a patient staging chart.
[1]When should you book an assessment?
How is fissured tongue identified?
A clinician identifies fissured tongue by examining the tongue surface and asking about symptoms. Examination also helps distinguish simple fissures from other causes of tongue soreness or surface change.
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