After the nail is pinched, it takes about 1-3 months to recover, and the recovery process can be roughly divided into the stage of congestion and edema, the stage of inflammation subsides, and the stage of tissue repair. 1. Congestion and edema stage: at this time, the nail is pinched after the performance of congestion, edema symptoms, after cold compresses or medication can be carried out to relieve pain and control the expansion of the scope of dark red bruises. 2. Inflammation subside stage: 7-10 days after the injury, the color of the bruise deepens to black, after a week or more, the bruise and gradually dry and gradually be partially absorbed, edema in the process also gradually subside. 3. Tissue repair stage: after the edema subsides and the blood coagulates and scabs off, the tissue is regenerated and repaired, and new nails can grow. During this process, care should be taken to minimize the activity of the injured area, and emergency medical attention should be sought in case of infection, bleeding, or other unforeseen circumstances.