Sores or pain in the mouth
A cold sore that heals is nothing to worry about, nor is a toothache that goes away after a trip to the dentist. But if you notice sores that don’t heal, pain that sticks around, white or red patches on the gums or tongue, and any swelling or numbness of the jaw it could be a sign of some mouth cancers, according to the ACS. If the symptoms persist for longer than two weeks, see a doctor. Learn the 50 rampant cancer myths to stop believing.