If you’ve ever had a canker sore, you know how painful these mouth sores can be. But what drives us really crazy is that if you’re a person who gets one canker sore, you probably get a LOT of them. And we want to know why.
According to the National Institute of Dental and Craniofacial Research (NIDCR), recurring canker sores affect about 20% of the population. Canker sores are officially called aphthous stomatitis, and they’re small, painful ulcers that develop in your mouth. They last about two weeks, and they can be very inconvenient. And while scientists don’t know the exact cause of them and there is no cure, they do know a few things that explain why you’re getting canker sores all the time.