Cold sores and canker sores aren’t the same. They vary in appearance, symptoms, and how they spread. Also, here’s what it means if you get a canker sore after oral sex.

Question What is the difference between a canker sore and a cold sore? Answer Canker sores and cold sores are common but distinct oral conditions that often get confused. Understanding the difference ...

Oral sores in the mouth are very common and, at times, can be very uncomfortable and discomforting. Both cold and canker sores can affect your mouth. However, when any of them erupts, people find ...

Mouth Ulcer vs. Cold Sore: How to Tell the Difference Canker sores and cold sores are both mouth sores, but they are not the same condition and have several key differences.

Canker sores are lesions in the mouth that usually aren’t serious, but they can be extremely irritating. Here are answers to commonly asked questions about these mouth sores.

Canker sores are not the same as cold sores, which are caused by the herpes simplex virus and are typically found on the lips. Unlike cold sores, canker sores are not contagious.

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

There are many possible causes of a canker sore in the throat. It may cause pain, especially when eating certain foods. Learn more here.

Find out what causes canker sores in children and learn how you can help your child if these painful mouth ulcers keep coming back after treatment.

Canker sores, also known as aphthous ulcers, are annoying irritations inside the mouth that afflict as many as 20% of Americans. They are different from cold sores, which usually appear on the ...