Clavus (Corn, Callus)

A clavus, also known as a corn or callus, is a thickening of the skin that usually occurs on the toes or other parts of the foot due to repeated pressure or friction. It is essentially a protective response of the skin to shield the underlying tissues from damage. The excessive buildup of callus forms a hardened area of skin. The pressure from this callused area creates a small pressure sore underneath, leading to discomfort.

Symptoms

A hard, thickened area of skin, often around the toes, which can be painful under pressure.
A central core that may feel deeper in the skin.
Pain or discomfort when walking or wearing shoes.
Redness and irritation around the clavus.

Causes

Repeated pressure: Prolonged pressure from tight or uncomfortable shoes can lead to the formation of a clavus.
Friction: Repeated rubbing against a part of the shoe or skin-to-skin contact.
Bone abnormalities: Conditions such as hammertoes or other foot deformities that create abnormal pressure points.
Genetic factors: Some individuals may be genetically predisposed to developing corns due to the shape of their feet or toes.

Diagnosis

The diagnosis of a clavus is typically made by a podiatrist or dermatologist based on the appearance and location of the thickened skin. The doctor may also examine the feet and assess footwear to identify the source of pressure.

Treatment

Mechanical removal: Professional removal of the callus by a foot specialist.
Protective pads: Special cushions placed over the clavus to reduce pressure.
Proper footwear: Wearing well-fitting shoes that provide adequate space for the toes.
Orthopedic adjustments: Custom-made insoles or modifications for people with foot deformities to reduce pressure.

Self-Care

Wear proper footwear: Ensure shoes provide enough space and do not pinch or rub.
Use moisturizing creams: Regular application of moisturizing creams can help keep the skin soft and prevent further thickening.
Avoid high heels or tight shoes: These can place extra pressure on the toes and promote the formation of corns.
Inspect your feet daily: Especially if you have diabetes or any condition that affects blood circulation to the feet.