The oral lesions caused by canker sores and cold sores may appear and feel similar, but they actually have different causes. Canker sores occur only in the soft tissues of the mouth, such as on your gums or inside your cheeks. They can be caused by a variety of factors, including injury to the inside of your mouth and vitamin deficiencies. Cold sores form on and around your lips, although in some cases they can also form inside your mouth. Canker sores occur only on the inside of your mouth. They can be found in the following areas:. Canker sores are typically round or oval in shape. They can appear to be white or yellow, and may have a red border. Canker sores can also vary in size from small to large.
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If you buy something through a link on this page, we may earn a small commission. How this works. Canker sores can be painful and irritating. Although they should heal without treatment, there are remedies for speeding up this process and reducing discomfort. Several home remedies can help a person soothe the irritation of canker sores and help them heal, including over-the-counter OTC gels, mouth rinses, and supplements. A canker sore is a small ulcer inside the mouth. It may be white or gray with red edges.
If you buy something through a link on this page, we may earn a small commission. How this works. Canker sores and oral herpes, also called cold sores, are common conditions with some similarities, which could lead you to confuse the two. Canker sores and cold sores both occur in or around your mouth and can make eating and drinking uncomfortable. We will explore the differences between canker sores and cold sores in this article. Canker sores are ulcers that appear in your mouth, usually on the soft tissue at the sides of your teeth or on the roof of your mouth. They are round and white, with a red border. Canker sores appear because of a weakness in your immune system or a nutritional deficiency. They are not contagious and usually go away on their own without treatment.
The last two names are particularly confusing, as chancre rhymes with canker. Sometimes people aren't certain exactly what their doctor has said. You should always ask your doctor to clarify, but understanding the differences between the three is also helpful. The sores found on the face and mouth are the ones that are usually confused by name. Although chancres can occur on the genitals, cold sores and canker sores are restricted to the face. Strictly speaking, cold sores are the same as genital herpes sores. However, they are not referred to as cold sores when they are on the genitals. Only chancres and cold sores are sexually transmitted and contagious.