What causes canker sores?

Several. The exact cause of most canker sores is unknown. Stress or tissue injury is thought to be the cause of simple canker sores. Certain foods -- including citrus or acidic fruits and vegetables (such as lemons, oranges, pineapples, apples, figs, tomatoes, and strawberries) -- can trigger a canker sore. Sometimes a sharp tooth surface, dental appliance, braces, or ill fitting dentures can trigger them.
Herpes virus. Usually the sore starts with a tingly sensation then may feel feverish and swolen then becomes painful and you will notice a raised blister or sore with a red border. Many times they are due to a trauma or stress but the bottom line is that it is from a herpetic virus.

Related Questions

What causes canker sores? How do I prevent them?

Canker Sores. Possible triggers for canker sores include: a minor injury to your mouth from dental work, overzealous brushing, sports mishaps, spicy or acidic foods, or an accidental cheek bite, toothpastes and mouth rinses containing sodium lauryl sulfate, food sensitivities, particularly to chocolate, coffee, strawberries, eggs, nuts, cheese and highly acidic foods, such as pineapple, and others. Read more...
Not very well known. The exact cause of canker sores is unknown. Stress or tissue injury is thought to be the main cause of simple canker sores. Certain foods can also cause these sores. Sometimes a sharp tooth surface or dental appliance, such as braces or ill-fitting dentures, can also trigger canker sores.Some cases of complex canker sores are caused by an underlying health condition, such as an impaired immune sys. Read more...

What causes canker sores on tongue and why do they hurt?

Canker sores. Cause is generally unknown although stress, local irritation, autoimmune response likely culprits. They hurt because the surface epithelium (similar to skin) is eroded and nerve endings are exposed. It could be other things as well, so see a dentist for quicker relief or if it doesn't completely resolve in 14 days. Read more...
Canker sores. are the most common oral lesions. A canker sores on tongue affects the ability to eat comfortably. Individual ulcers typically last 1-2 weeks. The condition is idiopathic (cause is not known) recurrent aphthous ulcers is usually self-limiting. Try to keep adequate oral hygiene as possible. If concerned see your dentist after 10 days or visit today for laser immediate amelioration. Read more...

Help docs! I'm trying to find out what causes canker sores and how do you get rid of them?

Canker sores. The cause of canker sores is not fully understood. Many triggers are suspected. See the following website for more information: http://www.Mayoclinic.Org/diseases-conditions/canker-sore/basics/causes/con-20021262 your body heals them on it's own. No special treatment is necessary ; most people just wait it out. There are many otc medications to use from local pharmacy. More potent rx from dentist. Read more...
Herpes simplex. Leftover from chicken pox that is stored forever. A viral situation that usually resolves in 2 weeks. Read more...

Help docs! I'm trying to find out what causes canker sores in your mouth?

Prevention. Canker sore or more specifically aphthous ulcer can be prevented by avoiding a common foam detergent found in most toothpastes called sodium laurel sulfate. Switching to biotene or other toothpaste not containing this ingredient can be the cure in preventing this painful condition. During an episode, 2000 mg of lysine in divided doses per day can decrease the symptoms and time involved to heal. Read more...

What causes canker sores inside your mouth? I have been getting them increasingly often and they always come back within a week of getting rid of them

Canker sores. There is no definitive cause of canker sores (aphthous ulcers). Canker sores often occur due to stress, irritation, injury. They may also occur with hormonal changes within the body. Re-occurring ulcers may also be due to viral infections. See your dentist to determine what kind or sores you are getting and the possible causes. Read more...
Canker sores. are the most common oral lesions. Individual ulcers typically last 1-2 weeks. The condition is idiopathic (cause is not known) recurrent aphthous ulcers is usually self-limiting. Try to keep adequate oral hygiene as possible. If concerned see your dentist after 10 days or visit today for laser immediate amelioration. Read more...

What causes canker sores in mouth and what natural remedies are out there?

Canker sores. The cause of canker sores (aphthous ulcers) is not fully understood. I have found it usually occurs when a patient is under stress and there is some irritation to the mucous membranes of the mouth. This can be from the bristles of a toothbrush or a hard piece of food. Avoid spicy and acidic foods. There are many otc products at the drug store to help ease the discomfort. Read more...
Virus. There are 2 common types of mouth sores, often called canker sores or cold sores. Both are viral. One is herpes. It can occur in your mouth and outside your mouth. Usually limited to the roof of the mouth and the gum tissue right around the teeth. The other is the aphthous ulcer. It is only found in the mouth and is on all the other tissue. Acyclovir works for some with the herpes. Warm salt water. Read more...
Canker sores. is very common after tooth extraction. Canker sores are the most common oral lesions. Individual ulcers typically last 1-2 weeks. The condition is idiopathic (cause is not known) recurrent aphthous ulcers is usually self-limiting. If concerned see your dentist after 10 days. Read more...

Help docs! I'm trying to find out what causes canker sores in your mouth and how do you get rid of them?

Canker sores. With limited space here, see this website for all the information you need about canker sores (aphthous ulcers) : http://www.Mayoclinic.Org/diseases-conditions/canker-sore/basics/definition/con-20021262 basically, cause is not known although there are triggers such as trauma, stress. Your body will heal them. Many remedies (otc and at dentist to make them feel better). Read more...
Ulcers. No real definitive know cause. Individuals vary in their factors that seem to trigger the onset, which may include nutritional deficiencies, local trauma, stress, hormonal influences, allergies, a genetic predisposition and other factors. They will completely heal w/o a scar in most cases and the treatment of them is usually just an issue of pain management. Read more...

What causes my canker sores?

Canker sores. See> http://www.mayoclinic.org/diseases-conditions/canker-sore/basics/causes/con-20021262. Read more...
Idiopathic condition. No one knows what causes canker sores. They may be caused by a virus, may be a form of allergic reaction or may result from an auto-immune condition. Nothing cures canker sores or prevents recurrence. Read more...