Nail Avulsions
Trauma to the nail can cause the nail plate to be torn from the nail bed. Unlike other types of avulsion, when a nail is lost, it is not typically reattached. Following the loss of the nail, the nail bed forms a germinal layer which hardens as the cells acquire keratin and becomes a new nail. Until this layer has formed, the exposed nail bed is highly sensitive, and is typically covered with a non-adherent dressing, as an ordinary dressing will stick to the nail bed and cause pain upon removal. In the average person, fingernails require 3 to 6 months to regrow completely, while toenails require 12 to 18 months.
Read more about this topic: Avulsion Injury
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