When to seek medical advice
Many of the common symptoms can be caused by less serious conditions, such as an infection.
However, it's strongly recommended that you see a GP or dentist if any of the symptoms have lasted longer than 3 weeks. It's particularly important to seek medical advice if you drink or smoke regularly.
Mouth cancer often does not cause any noticeable symptoms during its initial stage.
This is why it's important to have regular dental check-ups, particularly if you smoke, drink heavily, chew tobacco or chew betel nut (a type of nut commonly consumed in Asia). Your dentist may be able to detect mouth cancer during your examination.