What is a common cause of onycholysis?

Onycholysis, which refers to the detachment of the nail plate from the nail bed, is commonly associated with moisture exposure. When nails are frequently exposed to water, especially in environments where they remain wet for extended periods, the adhesive properties of the skin and underlying tissues can be compromised. This continuous moisture can weaken the bond between the nail and the nail bed, leading to separation.

Excessive filing, while it may contribute to other nail problems such as thinning or splitting, does not primarily cause onycholysis. Similarly, nail polish removal, particularly if done carefully, doesn’t directly contribute to the condition unless harsh chemicals are involved, which could lead to other issues. Low humidity, though it may affect nail health, is not as significant a factor in causing onycholysis as prolonged exposure to moisture. Thus, the correct answer highlights the predominant risk factor related to this nail condition.