What condition is indicated by the term "onynchausis"?

The term "onychausis" refers specifically to the thickening of the nails. This condition can occur due to various factors including trauma, fungal infections, or systemic conditions affecting nail growth. It's important to accurately identify nail conditions, as they can provide insight into a person's overall health and may indicate underlying issues that need to be addressed.

The other options represent different nail conditions. For example, spoon-shaped nails, known as koilonychia, indicate an iron deficiency or other underlying health problems. Living skin around the nail relates to the cuticle, which protects the nail matrix, while white spots on nails, often caused by minor trauma or mineral deficiencies, do not pertain to the thickening aspect described by onychauisis. Recognizing these distinctions is crucial for effective assessment and treatment in cosmetology.