Corn
A corn on the ball of the foot. It is small and round with a hard core at the centre — that core is what presses inward and does the hurting.
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Corn vs Callus
A corn is small and deep. Pressure lands on one point, so the skin builds a hard core. That core presses inward like a stone in your shoe, and it hurts when you press on it. A callus is broad and flat. Pressure spreads over a wide area, so the skin thickens evenly and usually does not hurt.
At a glance
| The difference | Corn | Callus |
|---|---|---|
| Does it hurt | Usually yes | Usually no |
| Should you treat it | Yes, if it hurts | Usually leave it |
Callus
A callus in the same area. It is broader and flatter with no core, and the edges fade gradually into normal skin instead of stopping sharply.
Side by side
The differences that matter
Size and shape
Corn
Small and round
Usually under a centimetre, with a defined edge and a hard centre you can feel.
Callus
Broad and flat
Can cover several centimetres with no clear border. It fades into normal skin.
Does it hurt
Corn
Usually yes
The hard core presses down into the tissue underneath. It feels like standing on a pebble.
Callus
Usually no
It is a protective pad. Most people only notice a callus when it cracks.
Where it forms
Corn
Toes, mostly
Tops and sides of toes, between toes, and the ball of the foot. Shoes that press or rub in one spot.
Callus
Weight-bearing surfaces
Heels, the ball of the foot, palms, and fingers. Anywhere that takes repeated broad friction.
Hard or soft
Corn
Both kinds
A hard corn sits on bony spots. A soft corn forms between toes, where sweat keeps it moist and white.
Callus
Hard
Dry, thickened, sometimes yellowish, and it may crack at the edges.
What causes it
Corn
A pressure point
Narrow shoes, a seam, a bony bump, a toe that sits higher than the others, or the way you walk.
Callus
Repeated friction
Walking, standing, going barefoot, sport, tools, or an instrument.
Should you treat it
Corn
Yes, if it hurts
Padding around it, wider shoes, and paring by a professional for quick relief.
Callus
Usually leave it
A callus is doing a job. Treat it only if it is thick enough to crack, or it feels uncomfortable. A cracked heel callus is worth treating, because deep cracks can bleed and let infection in.
What actually fixes it
Corn
Change the pressure
A wider toe box, cushioned insoles, and a pad that surrounds the corn rather than sitting on it. If the pressure stays, the corn comes back however often it is pared off.
Callus
Soften and reduce
Urea or salicylic acid cream, gentle filing after a shower, and moisturizer. Slowly, not all at once.
How fast it comes back
Corn
Weeks, if nothing changes
Callus
Ongoing
Do not cut either one at home
Corn
Medicated corn plasters are also worth avoiding if you have any circulation or nerve problem. The acid does not know where to stop.
Callus
Do not use a blade, a razor, or a callus shaver. You cannot judge depth by eye. The two most common results are an infection and a wound that takes weeks to heal.
Related
Corn
- Plantar wart vs corn
- Corn vs bunion
- Salicylic acid
Common questions
Questions Patients Ask
Callus vs corn — what is the difference?
A callus is broad and flat, from pressure spread over a wide area, and it usually does not hurt. A corn is small and deep, from pressure focused on one point, and it builds a hard core that presses inward like a stone in your shoe. That core is what hurts.
Is a corn just a small callus?
Close, but the hard central core is what makes a corn different, and what makes it painful. A callus has no core.
What is a soft corn?
A corn between the toes, where sweat keeps it moist so it stays white and rubbery instead of hard.
Can I file a callus down?
Gently, after a shower, a little at a time. Do not use a blade or a callus shaver, and do not try to remove it all at once — it is there for a reason.
Should I remove a callus at all?
Only if it is thick enough to crack or is uncomfortable. A cracked heel is worth treating, because deep cracks bleed and can let infection in.
Why does my corn keep coming back?
Because the pressure is still there. Paring removes the skin, not the cause. Wider shoes and a proper toe box do more than any cream.
Can I treat these at home if I have diabetes?
No. Reduced sensation and blood flow turn a small foot injury into a serious one. Get them looked at rather than treated at home.
When should a corn or callus be checked?
Get professional advice before self-treatment if you have diabetes, poor circulation or a weakened immune system. Seek care for severe pain, bleeding, pus, or a problem that is not improving. Do not cut the hard skin away yourself.