What can cause a yellow tongue and white spots in the mouth?

See a dentist: A yellow tongue and white spots in the mouth caused by oral thrush, leukoplakia, oral lichen planus, canker sores, etc. Some may require further assessment, tests and your Dentist may book a follow-up appointment or refer you to a specialist to determine a diagnosis. Take care.

See doctor: It could be thrush or other oral infection. You really need to be seen by your doctor to get an accurate diagnosis