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The tongue papillae, including the taste buds, can become inflamed. A sore tongue is not always a sign of something more serious. The tongue should be included in good dental health habits. Over time, smoking can make the tongue more sensitive to heat and cold.
1 Geographical tongue in the medical field is a condition affecting the tongue where top side of it is covered in small protrusions called papillae. 2  This condition does not necessarily cause pain like others but a burning sensation may occur after taking certain foods that come into contact with the tongue.