If the nail is smashed off, it will usually grow back, but if the nail matrix is damaged, the nail may not grow back.
1. The nail matrix is not damaged: the nail matrix is located in the root of the nail, is a special kind of epithelial structure. The matrix is the starting point for nail growth, which is usually formed by the proliferation and keratinization of the nail matrix cells at the root of the nail and their movement forward across the nail bed. If the nail is smashed off but the nail matrix is not damaged, the nail can usually grow back.
2. Damage to the nail matrix: If the nail matrix is damaged, the nail may be incomplete, not smooth, deformed, or may not grow. You can go to the hospital for relevant examination and treatment under the guidance of the doctor.
Nails were smashed off timely medical treatment, under the guidance of the doctor to do further treatment, at the same time, patients need to pay attention to disinfection, keep the wound clean and dry, prevent local infection, adjust the diet structure.