Canker Sores

  • Medical Author:
    John P. Cunha, DO, FACOEP

    John P. Cunha, DO, is a U.S. board-certified Emergency Medicine Physician. Dr. Cunha's educational background includes a BS in Biology from Rutgers, the State University of New Jersey, and a DO from the Kansas City University of Medicine and Biosciences in Kansas City, MO. He completed residency training in Emergency Medicine at Newark Beth Israel Medical Center in Newark, New Jersey.

  • Medical Editor: Jerry R. Balentine, DO, FACEP
    Jerry R. Balentine, DO, FACEP

    Jerry R. Balentine, DO, FACEP

    Dr. Balentine received his undergraduate degree from McDaniel College in Westminster, Maryland. He attended medical school at the Philadelphia College of Osteopathic Medicine graduating in1983. He completed his internship at St. Joseph's Hospital in Philadelphia and his Emergency Medicine residency at Lincoln Medical and Mental Health Center in the Bronx, where he served as chief resident.

Quick GuideDental Health: Top Problems in Your Mouth

Dental Health: Top Problems in Your Mouth

What are the causes of canker sores?

The cause of most canker sores is not well understood, and multiple factors may cause sores to appear. Some possible causes of canker sores include the following:

Reviewed on 9/14/2015

Femiano, F., Lanza, Alessandro. et al. Guidelines for Diagnosis and Mangement of Aphthous and Stomatitis. The Pediatric Infectious Disease Journal. August 2007; vol 26: pp 728-732. Canker Sore.

University of Maryland Medical Center. Goldenseal.

University of Maryland Medical Center. Licorice. Canker Sores. Understanding Canker Sore Symptoms.


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  • Canker Sores - Effective Treatments

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