Canker Sores: Click for Cause, Types & Symptoms

Canker sores are basically small white blisters or sores encircled by an area of redness. These lesions are not contagious and occur only inside the mouth. These sores are quite common and often and make eating and talking painful. Sometimes, canker sores are often confused with a cold sore, which occurs due to the contagious herpes virus. Canker sores usually appear in the mouth at the base of the gums in the soft tissues and disappear on their own within 1-2 weeks. Read this article to know more about canker sores.



The main cause of canker sores is still unknown and uncertain. Some people believe that bacteria or viruses or immune system problems are contributing factors for the cause of canker sores occurrence. Some food items such as pineapples, apples, figs, tomatoes, oranges, pineapples can also trigger a canker sore or make the problem worse. Canker sores also occur due to the sharp tooth surface or dental appliances, such as braces or ill-fitting dentures. Sometimes, conditions such as stress, trauma, allergies, cigarette smoking, nutritional problems, iron or other vitamin deficiencies, tract diseases, such as celiac disease or Crohn’s disease also cause canker sores.


Tonsil canker sore

Tonsil cankers are less common than mouth canker sores. These sores can be found anywhere on the tonsil. Tonsil cankers are less subject to irritation when you speak but can make the swallowing difficult.

Uvula Canker Sore

These sores can be found anywhere on the uvula. Uvula Canker Sores are even less painful than any other mouth canker sores as they are less subject to irritation when a person speaks. The sores on the uvula can even make swallowing difficult.

Lip Canker Sore

Lip Canker sore is among the most painful types of mouth canker sores. These sores do not occur outside skin of the lips beyond the vermillion border. If any lesion found on outer part lips, it is definitely not a canker sore as they always occur on the on the mucous membrane of the lips.

Gum Canker Sore

Gum canker sore are quite a common type of sores.These sores are quite painful because gums are very sensitive. Gum canker sores are usually caused by dental bridges, braces, and mini-traumas made by toothbrushes.

Throat Canker Sore

Throat canker sore occurs rarely and can be found anywhere in the throat, even in the back of the throat. They are large in numbers and less painful than other mouth canker sores. These sores are also less subjected to irritation when you speak. They can make the swallowing difficult if badly located.


There is a burning or tingling sensation in the mouth just 24 hours before canker sores appear. It is a kind of gray, yellow and white crater that appears inside the mouth with a red border that surrounds it. Some of the symptoms of canker sores are given below. The pain usually goes away in 7 to 10 days but sometimes it can even take 1 to 3 weeks for a canker sore to completely heal. Large ulcers can take even longer time to heal.

• Swollen lymph node

• Feeling sluggish and run down

• Fever

• Swollen lymph nodes

• General discomfort or uneasiness


As conversed in the article, these are some causes, symptoms, and types of canker sores. You can even make Canker Sore Remedy to get instant relief, but if the canker sores continue to appear for a longer time, then you must go to doctor’s place to know about the underlying medical condition.

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