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) ...

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. 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 ...

Those tiny white spots inside your mouth might be small in size, but they deliver pain far beyond their dimensions. Canker sores affect nearly everyone at some point, making simple pleasures like ...

Mouth and tongue lesions are often one of the first symptoms of human immunodeficiency virus (HIV). HIV weakens your immune system, which can leave you susceptible to sores and infections. If left ...

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 ...

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 ...