What nail condition indicates a state of shedding and often involves discoloration?

The condition that indicates a state of shedding and often involves discoloration is onycholysis. This condition occurs when the nail separates from the nail bed, leading to visible changes such as discoloration, which can vary from white to yellow. The shedding aspect is significant because it reflects the detachment of the nail, which can be caused by various factors, including trauma, infection, or reaction to products.

In onycholysis, the nail may become loose and raised, exposing the area beneath the nail, which is often more sensitive and can be prone to additional issues, such as infection. Recognizing this condition is crucial as it can indicate underlying health issues or reactions to treatments, leading to further examination and appropriate care.

In contrast, other conditions listed do not share the same characteristics. Onychomycosis refers specifically to a fungal infection of the nails that can lead to thickening and discoloration but not necessarily shedding. Plicatured nail describes a nail that is curved and folded, which does not imply shedding. Onychia is an inflammation of the nail matrix and is more associated with redness and swelling than shedding.