National Institutes of Health
- The primary NIH organization for research on Corns and Calluses is the National Institute of Arthritis and Musculoskeletal and Skin Diseases
A service of the U.S. National Library of Medicine 
National Institutes of Health
Corns and Calluses
Corns and calluses are caused by pressure or friction on your skin. They often appear on feet where the bony parts of your feet rub against your shoes. Corns usually appear on the tops or sides of toes while calluses form on the soles of feet. Calluses also can appear on hands or other areas that are rubbed or pressed.
Wearing shoes that fit better or using non-medicated pads may help. While bathing, gently rub the corn or callus with a washcloth or pumice stone to help reduce the size. To avoid infection, do not try to shave off the corn or callus. See your doctor, especially if you have diabetes or circulation problems.
NIH: National Institute on Aging
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Start Here
- Blisters, Calluses, and Corns(Nemours Foundation)
- Also available in Spanish
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Overviews
- Corns(American Academy of Orthopaedic Surgeons)
- Corns and Calluses(American Podiatric Medical Association)
- Corns and Calluses(Mayo Foundation for Medical Education and Research)
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Prevention/Screening
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Foot Care(National Institute on Aging)
- Also available in Spanish
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Prevent Diabetes Problems: Keep Your Feet and Skin Healthy
(National Institute of Diabetes and Digestive and Kidney Diseases)
- Also available in Spanish
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Foot Care
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Related Issues
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Pictures & Photographs
- Callus(Logical Images)
- Corn(Logical Images)
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Clinical Trials
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ClinicalTrials.gov: Callosities(National Institutes of Health)
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ClinicalTrials.gov: Callosities
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Journal Articles
References and abstracts from MEDLINE/PubMed (National Library of Medicine)
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Directories
- Find a Dermatologist(American Academy of Dermatology)
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Organizations
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Teenagers
- Callus(Logical Images)
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Patient Handouts
- Corns and calluses
- Also available in Spanish
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You may also be interested in these related encyclopedia pages:
MEDICAL ENCYCLOPEDIA