What is the term for the separation and falling off of a nail from the nail bed?

The term for the separation and falling off of a nail from the nail bed is onychomadesis. This condition specifically refers to the complete detachment of the nail plate from the nail bed, often occurring after trauma, infections, or systemic illnesses. It is essential to understand that onychomadesis not only involves the shedding of the nail but also signifies various underlying health issues or nail growth disturbances that may need to be addressed.

In contrast, pyogenic granuloma refers to a type of growth that can occur on the skin or nails, typically featuring red, raised, and often bleeding lesions. It is not related to the separation of the nail. Paronychia is an infection of the skin around the nail, leading to inflammation and sometimes pus formation but does not involve the nail itself falling off. Onychia indicates inflammation of the nail matrix and can involve nail discoloration or deformity but does not specifically refer to the nail's detachment from the bed. Understanding these distinctions helps in recognizing and diagnosing nail disorders effectively.