Tag Archives: cold sores

What Causes Mouth Sores?

sore mouth


What Causes Mouth Sores?

There are two main categories of mouth sores.  Canker Sores and Cold Sores. While many people confuse them, they are very different.  Canker sores typically occur inside the mouth while cold sores typically appear on the outside of the mouth.  Canker Sores, while the exact cause is unknown, it is suspected that their cause is related to stress, acidic or citrus foods.  For more serious canker sores, a compromised immune system and a history of previous outbreaks is usually the reason why.  As for Cold Sores, a virus is the cause and they are contagious.

What are the Types of Mouth Sores?

Mouth Sores-  Simple Canker Sores, Complex Canker Sores and Cold Sores. 

  • Simple Canker Sores– It is unknown the exact cause as to why people develop simple canker sores.  It is thought that these type of canker sores develop due to acidic or citric foods.  Another possible cause is stress or tissue injury.
  • Complex Canker Sores–  This type of canker sore is less common and is most likely to occur with people who have had them before. It is more prevalent with people who have underlying health issues or compromised immune systems.
  • Cold Sores- Cold Sores normally appear on the outside of the mouth.  They are caused by a virus are are very contagious.  Like Canker Sores, they can be painful.

How Can Your Dentist Help?

Most mouth sores will heal on their own within two weeks.  If you have large canker sores that cause you much pain, contact your dentist.  Your dentist can prescribe various treatment options to help you reduce pain and help the sore heal.

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