Callus

A callus forms when the skin thickens in response to repeated friction, pressure, or irritation. The body’s natural defense mechanism activates when excessive rubbing or stress occurs on the outer layer of skin, prompting the skin cells to multiply and create a protective layer. Calluses commonly develop on the feet, hands, or other areas subjected to frequent friction, such as the heels, palms, and fingers.

While calluses are generally harmless and painless, they can become uncomfortable if they grow too thick or if underlying tissues become irritated. Activities like walking, running, or manual labor often lead to callus formation due to consistent pressure on specific skin areas. Wearing proper footwear, using protective gloves, and regularly moisturizing the skin can help prevent calluses. If a callus becomes painful or problematic, consulting a foot and ankle specialist can provide relief and appropriate treatment.

Causes for a Callus

Calluses develop when the skin responds to repeated pressure and friction by creating a thicker, tougher layer for protection. Several factors can increase stress on certain areas of the feet or hands, causing the skin to harden over time.

Common causes may include:

• Repeated friction from shoes, socks, or walking patterns causes the skin to thicken and form calluses.
• Tight, narrow, or poorly fitting footwear creates pressure points that irritate the skin and trigger callus development.
• High heels increase pressure on the front of the foot and encourage thickened skin formation.
• Frequent activities such as running, walking long distances, or manual workplace repeated stress on certain areas of the feet and hands.
• Abnormal foot structures, including bunions, hammertoes, and other toe deformities, create uneven pressure that leads to calluses.
• Improper gait patterns change how the feet absorb weight and place extra stress on specific areas.
• Lack of protective footwear exposes the skin to repeated rubbing and pressure from surfaces or equipment.
• Dry skin reduces flexibility and makes certain areas more likely to develop thickened, hardened patches.

Treatment Options for Calluses