What are calluses and corns?
Calluses and corns are areas of thick skin caused by pressure or friction. It is a normal reaction by the body to produce thick skin when pressure is applied, in order to prevent itself from breaking down. However, this thickness can cause secondary pain by applying pressure on the soft skin around it. Corns and callouses are made of keratin, just like our hair and nails, so they dont actually have feeling. There is no nerve or blood supply to these lesions. The pain is caused by the pressure they apply to the soft skin.
Callouses are usually a patch of thickened skin which will be yellow in colour. They are caused by sheer forces on the skin.
Corns can be soft (between the toes) or hard (top of toes or sole of foot). A corn will usually appear as small seed size patch of hard skin. It occurs when there is torsional forces on the skin, which is why it becomes like cone shaped lesion. It hurts when direct pressure is applied. Read more