• Medical Author:
    Melissa Conrad Stöppler, MD

    Melissa Conrad Stöppler, MD, is a U.S. board-certified Anatomic Pathologist with subspecialty training in the fields of Experimental and Molecular Pathology. Dr. Stöppler's educational background includes a BA with Highest Distinction from the University of Virginia and an MD from the University of North Carolina. She completed residency training in Anatomic Pathology at Georgetown University followed by subspecialty fellowship training in molecular diagnostics and experimental pathology.

  • Medical Editor: William C. Shiel Jr., MD, FACP, FACR
    William C. Shiel Jr., MD, FACP, FACR

    William C. Shiel Jr., MD, FACP, FACR

    Dr. Shiel received a Bachelor of Science degree with honors from the University of Notre Dame. There he was involved in research in radiation biology and received the Huisking Scholarship. After graduating from St. Louis University School of Medicine, he completed his Internal Medicine residency and Rheumatology fellowship at the University of California, Irvine. He is board-certified in Internal Medicine and Rheumatology.

Quick GuideCommon Causes of Foot Pain

Common Causes of Foot Pain

What are symptoms and signs of corns and calluses?

Corns and calluses are

  • hardened, thick areas of skin;
  • rounded or conical and may appear as a bump on the skin;
  • dry, scaly, or flaky;
  • painful if they interfere with walking or other activity. Calluses are typically painless.

How are corns and calluses diagnosed?

The diagnosis can be made by observing the characteristic changes in the skin. Specialized tests are not necessary. Continue Reading

Reviewed on 4/26/2016

Hogan, Daniel J. "Corns." Sept. 18, 2014. <>.

Kasper, D., et al., eds. Harrison's Principles of Internal Medicine, 19th Ed. United States: McGraw-Hill Professional, 2015.


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5."Corns" by Marionette / iStock

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