Corns and Calluses

What Are Corns and Calluses?

Corns and calluses are thick, hardened layers of skin that form as a protective response to friction, pressure, or irritation. While they can develop on various parts of the body, they are most commonly seen on the feet, hands, and fingers.

Difference Between Corns and Calluses

Although corns and calluses are similar, they differ in size, shape, and location:

Corns

• Small, round, and well-defined.

• Usually appear on the tops or sides of toes.

• Can be painful when pressed.

Calluses

• Larger, irregularly shaped patches of hardened skin.

• Commonly found on weight-bearing areas such as heels, big toes, and the balls of the feet.

• Often seen on the hands due to repetitive friction, such as from playing guitar, weightlifting, or manual labor.

Types of Corns

• Hard corns: Dense, small areas of thickened skin, usually on the tops of toes.

• Soft corns: Whitish or gray, with a rubbery texture, often found between toes.

• Seed corns: Small corns that usually form on the soles of the feet.

Symptoms and Causes

What Do Corns and Calluses Look Like?

• Corns: Small, round bumps of hardened skin, sometimes surrounded by inflamed skin.

• Calluses: Larger, thickened areas that are less sensitive than surrounding skin.

• Both can cause pain, redness, and discomfort, especially when walking or applying pressure.

Are Corns and Calluses Painful?

• They may or may not be painful initially.

• Over time, thickened skin can cause tenderness or cracks (fissures), which may lead to pain or infection.

Common Causes

• Ill-fitting shoes that create friction or pressure.

• Walking, running, or standing for extended periods.

• Physical activities or hobbies involving repetitive hand or foot pressure.

• Going barefoot or not wearing socks.

• Structural foot deformities, such as bunions or hammertoes.

How Do Corns and Calluses Form?

They develop from repeated rubbing, irritation, or pressure. The thickened skin is the body’s natural defense mechanism to protect deeper layers from damage.

Who Is More Likely to Develop Them?

• People with arthritis, bunions, or other bone deformities.

• Those who walk without socks.

• Individuals who wear tight or narrow shoes.

• People who have reduced natural padding on their feet.

Possible Complications

• Infections if the skin cracks or becomes irritated.

• Crusted, painful areas that may interfere with walking.

• Rarely, surgery may be needed if caused by structural deformities.

Diagnosis

A healthcare provider can diagnose corns and calluses through a physical exam. No lab tests are required.

Treatment and Management

Home Care and Removal

• Soak the affected area in warm water for 5–10 minutes.

• Use a pumice stone or emery board to gently remove dead skin.

• Apply moisturizing creams containing urea or ammonium lactate.

• Use protective pads (moleskin or donut-style cushions) to reduce friction.

• Wear properly fitted shoes with enough space in the toe box.

• Keep toenails trimmed to prevent pressure.

When Not to Self-Treat

• People with diabetes, poor circulation, or frequent infections should not attempt self-treatment and must consult a healthcare provider.

Medical or Surgical Treatment

• Over-the-counter medications may help, but they can damage surrounding healthy skin.

• Surgery may be recommended in severe cases, especially if bone deformities cause recurring corns or calluses.

Prevention

• Wear comfortable, supportive shoes with adequate cushioning.

• Always wear socks with footwear to reduce friction.

• Use cushioned insoles or lamb’s wool between toes to prevent rubbing.

• Wear gloves during manual labor.

• Keep feet clean, moisturized, and inspected daily.

Living With Corns and Calluses

You should see a healthcare provider if:

• You have diabetes or circulation issues.

• Home remedies do not work.

• Pain worsens or infection signs appear (redness, swelling, pus).

• Structural foot deformities cause recurring problems.

Questions to Ask a Healthcare Provider

• Is it a corn or a callus?

• What caused it?

• Which treatment do you recommend?

• How can I prevent them from returning?

By addressing the underlying cause—such as footwear or posture—you can manage and prevent corns and calluses effectively.