Which nail disorder involves the edges of the nail plate curling around to form a cone shape?

The condition known as trumpet nail involves the edges of the nail plate curling around to form a cone shape, which is characterized by a distinct, tapered appearance. This deformity typically affects the lateral edges of the nail and results in the sides rising and curling inward. This abnormal curvature can occur for a variety of reasons, such as genetic predisposition, trauma to the nails, or previous injuries to the nail area.

Other conditions like hangnails, fungal nail infections, and onycholysis present different symptoms and characteristics. A hangnail involves a small tear or split in the skin at the edge of the nail, rather than a change in the shape of the nail itself. A fungal nail infection can lead to discoloration, thickening, and crumbling of the nail, but does not cause the nail to curl into a cone shape. Onycholysis refers to the separation of the nail plate from the nail bed, which also does not result in the characteristic curling seen in trumpet nail. Understanding these distinctions is crucial for identifying nail disorders accurately.