Which condition is characterized by inward curve and overgrowth of the nail?

The condition characterized by an inward curve and overgrowth of the nail is onychocryptosis, commonly known as an ingrown nail. This condition occurs when the edges of the nail grow into the surrounding skin, leading to inflammation and potential infection. It often affects the toenails but can occur with fingernails as well. The inward curvature and subsequent overgrowth create a scenario where the nail embeds into the flesh, causing pain and swelling.

Understanding onychocryptosis is essential for nail technicians and aestheticians, as proper identification enables them to recommend appropriate treatments or interventions, and also helps in informing clients about preventive measures to avoid this condition in the future.

The other conditions, while related to nail health, do not include the specific characteristics of inward curvature and overgrowth that define onychocryptosis. This distinction is crucial for accurate diagnosis and treatment in nail technology practice.