Skin diseases A – C Skin diseases A-Z Clavus (Corn, Callus) February 28, 2025 / August 12, 2026 by Dick van Gerwen | Leave a Comment 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 […] Read more » callus Clavus Corn Corn on foot Corn removal Corn treatment Foot care Foot problems Hard corn Painful callus Pedicure treatment Pressure spot foot Pressure spots toes Skin thickening Soft corn