What does leukonychia refer to?

Leukonychia specifically refers to the presence of white spots or discolorations on the nails. This condition can occur for various reasons, including minor trauma, allergic reactions, or underlying health issues. The term is derived from the Greek words "leuko," meaning white, and "onychia," relating to the nail. White spots can vary in size and may appear on one or multiple nails. Understanding leukonychia is essential for nail technicians as it helps them identify any potential health concerns that may need addressing or further investigation. The other conditions mentioned—dark purple spots, horizontal lines, and absence of a nail—represent different types of nail anomalies and are not associated with leukonychia.