Mouth ulcers also known as canker sores are small lesions that occur on the soft tissues in your mouth or at the base of your gums. These are non-contagious but they can be painful and go away in around a week or two. It is advised to go check with your dentist if they persist.
- Injury from dental work.
- Vigorous brushing.
- Using toothpaste containing sodium lauryl sulfate.
- Food sensitivities.
- Diet lacking in vitamin B-12.
- An allergic response to certain bacteria in your mouth.
- Hormonal shifts during menstruation.
- Emotional stress.