What is onychosis?

Onychosis refers specifically to any deformity or disease that affects the natural nails. This term encompasses a range of conditions that can result in changes to the nail structure, appearance, or growth patterns. It is an important concept in the field of cosmetology as it directly relates to maintaining healthy nails and understanding various nail disorders that might be encountered in clients.

The other options focus on products or treatments related to nails but do not define a medical condition. A type of nail polish is a cosmetic item, while a cosmetic treatment for nails refers to enhancements or spa services offered in salons. Similarly, a nail growth stimulant refers to products intended to encourage nail growth but does not capture the essence of what onychosis entails. Understanding onychosis is crucial for recognizing signs of nail diseases and helping clients address these issues appropriately.