Nail injury after growing new nail deformation generally do not have to take special treatment, with the passage of time, the nail will automatically return to normal state, if the damage is larger, exposing the nail bed, can be used externally with mupirocin ointment to prevent infection, the serious may also need to pull out the nail treatment. 1. After the nails are damaged by external forces, it may lead to deformation of the nails due to the influence of external forces, generally speaking, this situation does not need to take special treatment measures, with the passage of time, the new nails can slowly grow out, and the broken places of the nails will gradually return to their original appearance. 2. If the nail is damaged by the impact of external forces, has exposed the nail bed, water, pus, can be taken under the guidance of a doctor to take medication, such as topical mupirocin ointment, etc., to avoid infection of the nail bed, the emergence of serious consequences. In serious cases, if necessary, under the guidance of a doctor for nail extraction treatment. It is recommended that patients with nail injuries go to the hospital in a timely manner, follow the doctor’s instructions to use medication, due to the slow growth of nails, need to be patient treatment, do not worry too much.