Is there a difference between a blister/cold sore and a canker sore?

Cold vs Canker sore. A cold sore or fever blister typically occurs outside the mouth; around the lips, chin and just under the nose, and are caused by herpes simplex virus type 1. In the event that a cold sore occurs in the mouth, you'll see it on the gum or soft palate. Canker sores typically erupt inside the mouth; on the tongue, inner lip and lining of cheeks. Exact cause is unknown.

Related Questions

How do a blister/cold sore and a canker sore differ?

UUsually. Usually caused by herpes for cold sore and canker sore is usually autoimmune. Please see your dermatologist for evaluation and to discuss treatment options. Read more...
Location. Typically, canker sores are inside your mouth in the mucosa (the lining on inside of your cheeks, lips, and under the tongue). Cold sores are usually outside the mouth in the skin of the lips, but can sometimes also occur inside the lips. Cankers have multiple suspected causes--injury, virus, even fungus are all possibilities. Cold sores are caused by herpes simplex 1 virus only. Read more...

What's the difference between a cold sore and a canker sore?

Cold vs canker sores. Cold sore are fluid filled blisters that frequently occur around the mouth and lips. They are caused be herpes simplex virus and are highly contagious. This virus is always with you and things like stress can cause an outbreak. Canker sores are ulcerations inside your mouth on the soft tissues like the buccal mucosa, cheek, soft palate. They can be very painful, heal in 10 days, unknown cause. Read more...
Cold vs Canker sores. Canker sores (aphthous ulcers) are painful sores inside the mouth. No one knows what causes canker sores. Herpes simplex virus (HSV-1) typically causes cold sores. Cold sore blisters can occur in many different parts of the body but are most common on or around the lips and cheeks. Read more...

What's the difference between a cold sore and a canker sore?

Differences. There are varying opinions but: Cold sores are a cluster of blisters that first appear clear then become cloudy. First infection may be inside the mouth, but cold sores generally appear outside the mouth on the lips. Canker sores are gray or white sores surrounded by a red inflamed area. They occur only inside the mouth, on the tongue or the insides of the cheeks, lips or throat. Read more...

Whats the difference between a cold sore and canker sore?

Cold sore vs canker. Neither one is a medical terminology. Both are often used interchangeably as they are used by non-medical professionals. A cold sore usually involves lips, and is caused by herpes simplex virus type 1. A canker sore in medicine is called aphthous stomatitis, which usually involves tongue or inside the gum. We don't know what causes it, but it often happens again and again, triggered by stress. Read more...
Same. These are layman's terms for the same thing. They are caused by a virus (typically a herpes virus) and are contagious. So if you have one, do not kiss/have intimate contact or share glasses/utensils, etc with others. And don't kiss/have intimate contact or share glasses or utensils with anyone else who has a cold sore. Read more...

What s the difference between a cold sore and canker sore?

A few things. Canker sores are red, covered in a white plaque, and usually found inside the mouth on the tongue or wall of the cheek, while cold sores are red bumps that turn into blisters and are usually found outside the mouth on and around the lips. Cold sores are exclusively caused by a herpes simplex virus while the cause of canker sores is often unknown (could be bacteria, virus, allergy, etc.). Read more...
Very different. Cold sores are typically lesions on the lip that stem from infections with herpes viruses (nongenital or genital strains). Canker sores are formally known as aphthous ulcers and occur within the mouth. It's not totally clear why, but probably immune and environmental factors are at play. Read more...

I want to know what is the difference between a cold sore, a canker sore, and oral herpes?

Tough to explain in. Such a small space. Cold sore=oral herpes, both have viral etiology. Virus released from a dormant state due to stress/immune system breakdown and causes blisters. Canker sore is not of viral cause and related to trauma or immune system issues. All can hurt. Rx steroids for canker, not virus. Check w your dentist for treatment advice. Read more...