Corns and Calluses
- Corns and Calluses Overview
- Corns and Calluses Causes
- Corns and Calluses Symptoms
- When to Seek Medical Care
- Exams and Tests
- Corns and Calluses Treatment
- Self-Care at Home
- Medical Treatment
- Next Steps
- Follow-up
- Prevention
- Outlook
- Synonyms and Keywords
- Authors and Editors
- Pictures of Foot Problems - Slideshow

Corns and Calluses Overview
A callus (tyloma) is an area of skin that thickens after exposure to repetitive forces in order to protect the skin. A callus may not be painful. When it becomes painful, treatment is required.
When a callus develops a mass of dead cells in its center, it becomes a corn (heloma). Corns generally occur on the toes and balls of the feet. Calluses occur on the feet, hands, and any other part of the skin where friction is present.
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Corns »
Corns, also referred to as clavi, are painful, hyperkeratotic papules of the skin that develop in response to excess pressure on the bony prominences of the feet and toes.
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