In summer, canker sores easily appear because vitamins and minerals are lost due to sweating. But canker sores disappear within 1-2 weeks naturally so that there is not much chance to go to the doctor when you have a cancer sore.
However, canker sores could be a sign of an initial symptom of oral cancer.
Oral canker can appear in the back of the mouth, on the tongue or other places, and makes a tumor that is similar to a canker sore as an initial symptom.
How to distinguish oral cancer from canker sores
1. If canker sores don’t disappear more than 2 weeks, it could be a sign of oral cancer.
2. Canker sores that have no pain could be a sign of oral cancer.
Any types of cancers don’t have pain at the initial stage. That is why it is difficult to find cancer at the early stage.
It is important to check the inside of your mouth often when you brush your teeth and if you feel any discomfort, it is better to consult a doctor.