A canker sore—a painful white ulcer inside the mouth—might be brought on by stress. Or the wrong toothpaste. Or certain foods: tomatoes, peanuts, cinnamon. Or an iron deficiency. Or an allergy. Or a ...

Add Yahoo as a preferred source to see more of our stories on Google. What causes canker sores and how can you get rid of them? Experts weigh in. (Photo: Getty Images) (Getty Images/iStockphoto) ...

Add Yahoo as a preferred source to see more of our stories on Google. The mouth with all its various parts is one of the most sensitive — and useful — parts of the body. It’s where you experience the ...

Q: What causes canker sores? Why would I have a sudden outbreak of them in my mouth? A: There are several theories about what leads to canker sores, those painful ulcers that form inside the mouth, on ...

The sudden appearance of a mouth lesion can raise concern, often leading to questions about its cause. While many may dismiss these small sores as harmless, recurring or persistent lesions may be an ...

Infections, injuries, jaw problems, and cancer can all cause mouth pain. The location and type of pain, plus any other symptoms that occur with it, can help with identifying the cause. The pain may ...

Gastrointestinal (GI) symptoms are the hallmark of Crohn’s disease, but this autoimmune condition can affect any part of the digestive system, including the mouth. Oral symptoms might even be the ...

Medically reviewed by John Carew, MD Key Takeaways Most causes of a sore throat and tongue are minor and can be treated by ...

Oral cancer is rare in children. Talk with your child’s doctor if you see a sore, lump, or other changes inside your child’s mouth. The vast majority are not cancer. Oral cancer is much less common in ...

Canker sores often seem to pop up out of nowhere and, once you have them, they’re often painfully hard to ignore — especially when you try to eat or even talk. So what, exactly, are canker sores? They ...