Whether the nail can grow back after being pressed off cannot be generalized, it is mainly related to whether the nail bed and the nail matrix are damaged or not, if the nail bed and the nail matrix are intact and undamaged, new nails will grow gradually, on the contrary, it is very difficult to recover. The nail bed is the tissue underneath the nail, which is the support for nail growth; the nail matrix is located at the root of the nail, which is a special kind of epithelial structure that produces keratinocytes that make up the nail, and these cells constitute the nail plate. If there is no obvious damage to the nail bed and the nail matrix, new nails will grow again. During this period, attention should be paid to avoiding excessive pressure and keeping the finger area clean and dry to avoid infection; if the nail bed and the nail matrix are damaged, new nails will not be able to grow, and the nail area can only be replaced by scar tissue. It is recommended that patients whose nails have been pressed off should go to the hospital in time to avoid post-injury wound infection and repair the nail bed if necessary.