I get canker sores often. what is causing this?

You are susceptable: Basically, once you get canker sores, you will occassionaly get them again. This autoimmune lesion is set off by various triggers, stress, or trama. Some triggers could be foods(peanuts, spicy food), drinks (red wine), or a cold. It varies with the individual.

No known cause : Canker sores or aphthous ulcers are triggered by many things but have no specific known cause like a virus or bacteria. Stress, foods, trauma, hormonal fluctuations, and the like can set off an episode. The ulcers themselves appear to be caused by your own immune system's response to the triggers. Sodium Lauryl Sulfate is a toothpaste additive that is a known trigger. Try SLS free toothpaste.

Canker sores: is the most common oral lesions. Most tongue ulcers, infections will clear up by themselves within a week or two. You should see your GP or dentist if the ulcer gets worse or lasts for longer than 2 weeks. Oral cancer appears as a growth or sore in the mouth that does not go away. If concerned see your dentist ASAP.

Contact dentist: The most likely factor may be stress or spicy foods. See your dentist, if it is problematic, have the dentist use the laser to initiate faster healing.