What is a keratoma or callous?

A keratoma, often referred to as a callous, is characterized as a round thickened patch of epidermis. This occurs as a response to repeated friction or pressure on the skin, typically in areas like the feet or hands. The skin thickens as a protective mechanism, leading to the formation of a hard, rough surface. This thickened area consists primarily of keratin, a protein that provides structure and protection to the skin.

Understanding the composition and the reason for its formation is vital for recognizing keratomas in various settings, including electrolysis and laser practices, where skin health is a significant consideration. The presence of a callous does not indicate inflammation, cancer, or infection, making this option the correct choice for defining what a keratoma or callous is. This knowledge is essential when assessing skin conditions and determining appropriate treatment methods.