Apr 3, 2018 · Canker sores occur singly or in clusters on the inside surfaces of your cheeks or lips, on or under your tongue, at the base of your gums, or on your soft palate. They usually have a white or …

May 23, 2024 · Canker sores are small, shallow wounds in your mouth that can make eating & talking uncomfortable. Learn more about causes, symptoms, diagnosis, treatment, remedies, & prevention.

Sep 18, 2025 · Doctors don’t know what causes them. But stress and minor injuries to the inside of your mouth are possible triggers. Treatments include over-the-counter or prescription ointments and …

Apr 22, 2025 · From stress to underlying medical conditions, learn the most common causes of canker sores. What’s it like to have canker sores? Three people share their experience on what it’s like to …

Canker sores are extremely common, affecting about 1 in 5 people, and while they can be painful and frustrating, they are not dangerous. That said, not every mouth ulcer is a canker sore — and knowing …

Nov 17, 2025 · Also known as mouth ulcers or aphthous ulcers, canker sores can cause tingling, burning, and pain. They are not the same as cold sores, which appear on the outside surface of the …

Apr 1, 2024 · Canker sores are commonly caused by trauma like biting the inside of your cheek, burns, allergies, or sensitivities. They may have other causes as well. However, canker sores are not...

Mar 21, 2017 · What are the main causes of canker sores? The cause of most canker sores is not well understood, and multiple factors may cause sores to appear. Some possible causes of canker sores …

Dec 4, 2025 · Stress, mouth injuries, and nutritional deficiencies are common triggers of painful canker sores. Practicing good oral hygiene can help prevent canker sores. Canker sores are also hereditary, …

Feb 7, 2019 · They can be triggered by a number of things, like a weak immune system, dehydration, allergies, stress, and even medication. Certain medical conditions may also cause canker sores. …