Canker sores are painful ulcers that occur in the mouth, including on gums. Here's a look at how to deal with them.

A canker sore on the tongue may cause discomfort, but it will usually heal without treatment. Possible causes include mouth injuries and certain oral products. Learn more here.

Canker sores tend to be on the mild side in 85% of people who develop them. However, you'll want to avoid eating these foods ...

Medically reviewed by Brian T. Luong, DMDMedically reviewed by Brian T. Luong, DMD A mouth ulcer, also known as a canker sore ...

Canker sores are painful sores inside the mouth. The lesions are oval shaped with a yellow-gray center that a red ring surrounds. Canker sores progress through different stages and typically last ...

Cancer. If your canker sores are not healing, it could be cancer. Yes, cancer can cause lesions and blisters that do not heal. Oral cancer or mouth cancer causes lesions on the tongue that look ...

The sores develop inside the mouth, on the surface of gums, tongue, or inner lips. They are generally red with a white center and are typically painful. Children who have canker sores may resist ...

Distinguishing a cold sore from a canker sore isn’t always easy. Both types of sores affect the mouth area, and they sometimes mimic each other in appearance. But a cold sore isn’t the same as ...

The biopsy revealed that Henderson also had tongue cancer. “The number one thing that I want people to know is from what my dentist said — a canker sore goes away in three weeks,” she says.

Canker sores that get severe can spread beyond the mouth, while also causing pain during eating or brushing teeth. Untreated syphilis can spread to the nervous system, brain, eyes, and ears.

In the fall of 2020, Katie Drablos noticed a canker sore on the back of her tongue that wouldn’t go away. As the pain increased, she visited urgent care, wondering if it was a COVID-19 symptom.