What are deep ridges in the nail called?

Deep ridges in the nail are referred to as furrows. Furrows represent a structural change in the nail plate, which can result from various factors, including trauma, nutritional deficiencies, or systemic conditions. When furrows occur, they create visibly apparent grooves along the length of the nail, distinguishing them from other nail conditions. Understanding the terminology is crucial for recognizing different nail abnormalities, which can indicate underlying health issues or be a result of specific practices in nail care.

Other terms, like corrugations, typically refer to more wavy or ripple-like indentations rather than deep ridges. Onychorrhexis indicates split or brittle nails, and clubbing is associated with a rounded appearance at the tips of the fingers due to various health conditions. Each term describes different nail abnormalities and their respective visual characteristics, which is why recognizing fits within specific contexts is essential for effective cosmetic and health-related practices in cosmetology.