Common tongue problems include black, hairy tongue, burning tongue or glossodynia, and traumatic injuries to the tongue, says MedlinePlus. Children biting their tongue accidentally is a fairly common injury, says Seattle Children's Hospital. Most of these injuries heal by themselves.
Black, hairy tongue is a benign condition where dead cells accumulate on the tongue, says Mayo Clinic. They are stained a dark color from food, coffee, tobacco, yeast or bacteria. This condition often resolves on its own without medical treatment.
As its name implies, burning tongue disease presents as a feeling that the patient's tongue is burning or has been scalded, says Mayo Clinic. The mouth may also be dry and the sense of taste altered.