What Causes a Canker Sore?

 

The cause of canker sores is unknown, but they tend to run in families. Canker sores may also develop when you:

  • Are stressed or tired.
  • Have your menstrual cycle, if you are a woman.
  • Hurt your mouth, such as biting your lip.
  • Have braces on your teeth.
  • Have food allergies. Eating foods that you are allergic to may cause you to get a canker sore.
  • Eat or drink food or juice that has a lot of acid, such as orange juice.
  • Do not get enough vitamins or minerals in your diet, such as iron.
Latest Canker Sore News
REFILE: Recurrent mouth ulcers suggest celiac disease

June 30, 2009 — NEW YORK (Reuters Health) - A minority of patients with recurrent mouth sores (aphthous stomatitis) have gluten-sensitive enteropathy, making evaluation for celiac disease appropriate in this population, according to a new study in BMC Gastroenterology.

Recurrent month ulcers suggest celiac disease

June 29, 2009 — NEW YORK (Reuters Health) - A minority of patients with recurrent mouth sores (aphthous stomatitis) have gluten-sensitive enteropathy, making evaluation for celiac disease appropriate in this population, according to a new study in BMC Gastroenterology.

Select news items provided by Reuters Health