Corns and Calluses - Symptoms, Causes & Treatment
By ScanSkinAI Editorial Team✓ Reviewed for medical safetyLast updated June 2026
Thickened, hardened layers of skin that develop from repeated friction or pressure. Corns are smaller with a hard center, while calluses are larger and less defined.
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Quick Answer
Corns and calluses are thickened, hardened layers of skin that form as a natural response to repeated friction or pressure on your feet or hands. Corns are usually small with a distinct hard centre, while calluses are larger and flatter. They often result from ill-fitting shoes or physical labor. Most are easily managed by wearing proper footwear, using protective padding, and keeping the skin moisturised. However, if you have diabetes or poor circulation, you should seek professional medical advice before attempting to treat hard skin at home.
Symptoms
- Thickened, rough skin
- Hard, raised bump (corn)
- Flattened patch of thick skin (callus)
- Pain with pressure
- Usually on feet or hands
Causes & Risk Factors
- Ill-fitting shoes
- Walking barefoot
- Not wearing socks
- Foot deformities
- Repetitive friction
Treatment & Management
- Proper footwear
- Padding
- Salicylic acid products
- Professional debridement
- Orthotics
- Treating underlying foot problems
When to See a Doctor
If you have diabetes, poor circulation, or if corns become painful or infected
Frequently Asked Questions
How do I know if I have a corn or just dry skin?
Dry skin usually feels tight or flaky across a wide area, whereas a corn is a specific, raised bump of thickened skin with a hard core in the centre. Corns also tend to happen on pressure points, like the tops or sides of your toes, and often feel painful or tender when you press on them or wear tight shoes.
What is the actual difference between a corn and a callus?
Both are thickened areas of skin caused by friction, but they look and feel different. Corns are smaller, raised bumps with a hard centre, usually appearing on the toes or parts of the foot that do not bear weight. Calluses are larger, flatter patches of thick skin that typically form on the soles of the feet, particularly the heels or the balls of the feet where you put your weight.
Why do I keep getting these hard lumps on my toes?
The most common cause is wearing shoes that do not fit properly, such as tight shoes that squeeze your toes together or loose shoes that allow your foot to slide and rub. Other factors include walking barefoot, not wearing socks with shoes, or having structural foot deformities that create unnatural pressure points when you walk. The skin thickens to protect itself from this repetitive friction.
What is the best way to get rid of corns safely?
The first step is to remove the source of friction by wearing comfortable, well-fitting shoes and using protective padding. You can also use over-the-counter treatments containing salicylic acid to help soften the dead skin. If the hard skin is very thick or painful, a podiatrist or healthcare professional can safely remove the excess layers using a scalpel. You should never try to cut away corns yourself.
Can I just use a razor or scissors to cut off the hard skin?
You should never attempt to cut, shave, or slice off corns or calluses at home using bathroom tools. Doing so can easily cut into healthy tissue, leading to severe pain and a high risk of bacterial infection. If your corn needs to be physically pared down, this procedure should only be performed by a trained healthcare provider or podiatrist using sterile medical instruments.
Will a corn eventually go away on its own if I change my shoes?
Yes, once you completely remove the pressure and friction that caused the corn in the first place, the skin will often heal and return to normal over time. Proper footwear, foot orthotics, and padded insoles distribute your weight more evenly and stop the rubbing. Regularly moisturising your feet can also help the hardened layers of skin soften and gradually fade away.
When should I see a doctor about thickened skin on my foot?
You should seek medical attention if the corn or callus becomes highly painful, warm, red, or starts oozing, as these are signs of infection. It is also crucial to see a doctor immediately if you have diabetes, neuropathy, or poor circulation. In these conditions, even a minor injury or rubbing can lead to serious foot ulcers and complications that require professional care.
How can ScanSkinAI help with corns and calluses?
ScanSkinAI can analyze photos of the rough or thickened areas on your feet to help you identify visual characteristics commonly associated with corns or calluses. While the AI is a helpful screening aid to provide educational information and guide your next steps, it cannot provide a medical diagnosis. You should always consult a healthcare professional for a formal evaluation, especially if you have underlying conditions like diabetes.
Related Conditions
Medical References
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Medical Disclaimer: This information is for educational purposes only and is not intended as medical advice. The content on this page should not be used to diagnose or treat any health problem. Always consult with a qualified healthcare professional for proper medical evaluation, diagnosis, and treatment of your condition.