Nail loss can be caused by external forces, for example. As long as the nail bed is not damaged or destroyed, it is usually possible to grow it back. Nail loss may be caused by external forces, etc. Trauma to the nails, such as smashing or bruising, leads to bruising and damage under the nail, which may eventually lead to nail loss. Nail loss due to external forces can grow over time with new nails. Nail loss usually takes about 3 to 6 months to recover, and patients are advised to eat more food containing calcium. If you are not sure, you can go to the hospital to treat the wound. Pay attention to good care, disinfection and cleaning, try not to touch the water, diligent disinfection and dressing to avoid infection. Nail loss may be caused by a variety of reasons, it is recommended that patients go to the hospital in a timely manner, targeted treatment.