A sore tongue and throat can have a number of possible causes. Most are not serious, such as allergies, minor trauma, and oral thrush. In some cases, however, a sore throat and tongue may have a ...
Regular mouth sores, a swollen or sore tongue, or cracks at the corners of the lips may suggest a deficiency in B vitamins, particularly B2, B6, B12, or folate. Iron deficiency can also show ...