If the sole of the foot is pierced by a nail, it should be treated promptly at the hospital, and if necessary, further frontal and lateral, or oblique x-ray examination of the foot should be performed, because if the external force of the injury is too great, it may also easily lead to local bone damage or fracture, and the foreign body should be removed under local anesthesia, and wound irrigation is usually required. Saline hydrogen peroxide is applied to repeatedly flush the wound more than three times, and debridement is performed under anesthetic support to remove necrotic tissue, especially for patients with deep wounds, and drainage is required if necessary. After disposal, anti-infective treatment should be provided, especially within 24 hours after the injury, and tetanus injection should be administered promptly, and allergy testing should be routinely performed prior to the injection. Post-injury treatment should also be accompanied by regular dressing changes to promote wound healing.