What is a callus also known as?

A callus, often referred to as a tyloma, is a thickened area of skin that develops in response to repeated friction, pressure, or irritation. This thickening acts as a protective mechanism for the skin, creating a barrier against further damage. Tyloma specifically denotes this localized hyperkeratosis, emphasizing its nature as a result of constant stress on the skin.

Understanding the term "callus" as tyloma is important for nail technicians because it helps in the identification and treatment of thickened skin areas, which may require specific attention during pedicures or manicures.

The other terms, while related to skin conditions, describe different phenomena: actinic keratosis refers to pre-cancerous lesions caused by sun exposure, a clavus (or corn) is a specific type of callus that forms on the toes, and hyperkeratosis is a general term for thickening of the outer layer of skin, which could include any number of conditions, not just calluses. Therefore, identifying a callus as tyloma is both accurate and clinically relevant.