What is the primary purpose of callus?

The primary purpose of callus is to protect the underlying skin from irritation. Calluses form in response to repeated friction or pressure on certain areas of the skin, typically on the hands and feet. This thickened layer of skin acts as a protective barrier, safeguarding the more delicate skin beneath from potential damage and irritation caused by consistent rubbing or pressure.

In situations where the skin is exposed to harsh conditions or repetitive motion, the development of a callus serves as a natural defense mechanism, helping to prevent injuries or abrasions. Understanding the role of callus is essential in nail technology, as it relates to foot care and the maintenance of healthy skin during various nail procedures.