Canker sores develop in the mouth as small white, yellow, or gray sores with a red border. There can be one sore or several. Just so you know, canker sores aren't contagious at all—so no need to take extra precautions if you're worried about spreading them. The most common sites for canker sores are inside the lips and cheeks, on the tongue, the base of the gums, and the mouth's roof.
Canker sores usually start with a burning or tingling feeling. They can also make talking or eating challenging. Minor sores typically heal after 1 to 3 weeks, while major ones may take up to 6 weeks. So be patient if you're healing with one right now. Also, heads up that sometimes another sore can appear after the first one heals.
If you're uncertain if you're experiencing a canker sore, check-in with your dentist. They'll be able to examine it and let you know right away.
Believe it or not, we don't know the exact cause of canker sores. However, we do know that they tend to run in families. So your parents or kids might have them too.
Even though we don't know what causes them, canker sores can appear when you:
Are you wondering how to stop getting canker sores? The best way to prevent canker sores is to identify what's causing them. It may take some investigative work at first. But you've got this. Did you scrape your gums with your dentures or a fork? Were you eating spicy or crunchy food the day before you noticed the sore? These kinds of questions will help you pinpoint what's triggering the canker sores in your mouth. Take a look at the causes above and see if you can make any connections for yourself.
Once you figure out what's causing the canker sores, then you work to prevent them. Here are some tips for canker sore prevention:
There's no need to see a doctor or dentist for most canker sores. As we mentioned, they usually heal on their own. Here are some things you can try at home to help relieve your symptoms if you have a canker sore right now:
Now you know the deal with canker sores and have plenty of tools to try to figure out what's causing them for you. Once you figure that out, you can take steps to avoid the triggers that bring them on. Managing your stress, including vitamins and minerals in your diet, and chewing gently, can support your efforts no matter what. If you have a canker sore right now, there are plenty of things you can do to soothe yourself, including eating soft, bland food, brushing without touching the sore, and even trying an antimicrobial mouthwash. Now's the perfect time to start figuring out what's causing your canker sores. So begin your canker sore detective work.
This article is intended to promote understanding of and knowledge about general oral health topics. It is not intended to be a substitute for professional advice, diagnosis or treatment. Always seek the advice of your dentist or other qualified healthcare provider with any questions you may have regarding a medical condition or treatment.
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