Mouth ulcer causes are extensive. If you are suffering from these open wounds on the interior of your mouth (not to be confused by cold sores which occur on the lips and outside your mouth,) you may be unsure what is causing your condition to occur in the first place. The good news is that in some cases, you can prevent the onslaught of pain and suffering that mouth ulcers cause by simply fixing the underlying problem.


Top Causes of Mouth Ulcers


Mouth ulcer causes include all of the following. You just need one of these instances to trigger the development of these open ulcers in your mouth, characterized by pain.


  • You suffer a minor injury to your mouth, cheek or other area of your mouth. Technically, any type of sore inside the mouth is a mouth ulcer. You can get these types of sores from accidental cheek bites, eating acidic or very spicy foods, brushing your teeth too hard or from dental work.
  • A diet lacking in vitamins B-12, folate or zinc can also cause mouth ulcers.
  • If you suffer from celiac disease, that can affect this condition.
  • Some food allergies may be behind this condition as well.
  • Some toothpastes and mouth rinses, especially those that contain sodium lauryl sulfate can cause the development of mouth sources and worsen their condition when you use them while sores are present.
  • If you have hormonal changes, such as those from menstruation, or you suffer from emotional stresses (both men and women) this can lead to mouth ulcer development.
  • Behcet’s disease is a rare condition that causes mouth inflammation, as well as inflammation in other areas of the body.
  • Inflammatory bowel disease can cause the development of this condition, too.


In many cases, doctors and dentists will be unable to tell you what the underlying condition is that is causing your mouth ulcers. The fact is that it could be a number of underlying symptoms. If you have any type of health ailment, are taking medications or have been active in sports, discuss these situations with your dentist. He or she may be able to tell you what the underlying cause of the condition is. Finally, it is important to note that you do not get these ulcers from a virus, like you do cold sores. To determine what the cause of your condition is, talk to your dentist.

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