Fissured tongue is a condition that causes grooves in the tongue, but in most cases, this harmless tongue condition is just a ...

A person’s tongue is generally flat and does not have significant grooves. Fissured tongue causes a person to develop one or more grooves on the top portion of their tongue. It does not usually ...

A fissured tongue isn’t usually serious. However, extra oral care may be required to remove debris. If cracks hurt or develop sores, they may be caused by another health condition that requires ...