Here's a breakdown:
* Nail Growth: Nails grow from the nail matrix. As new cells are created, they push the older cells forward, causing the nail to lengthen.
* Regeneration: As long as the nail matrix isn't severely damaged (e.g., through injury or surgery), it will continue to produce new nail cells, and the nail will regrow.
* Regrowth After Loss: If a nail is lost due to injury or avulsion (intentional removal), it can typically regrow. The process can take several months, and the new nail may initially appear different but usually returns to normal over time.
* Lifelong Growth: Nails generally grow throughout a person's life, although the rate of growth can change due to factors such as age, nutrition, and overall health.
If the nail matrix is significantly damaged, it can cause permanent changes to nail growth, such as a deformed nail or complete cessation of growth. However, in most cases, nails will regrow repeatedly after loss or damage as long as the nail matrix is intact.