If a nail is broken in half but does not fall off, a wound assessment should be conducted. If there is active bleeding or fracture, it should be treated urgently before going to the hospital for treatment; general wounds can be cleaned and cared for by oneself. If there is active bleeding or bleeding under the nail, the wound should be pressed first to stop bleeding before going to the hospital for treatment as soon as possible. For general wound treatment, if there is no adherent tissue in the broken nail, you can remove the broken nail, wipe it with iodine vapors, and apply antimicrobial ointment on the surface of the nail bed for treatment, such as mupirocin ointment, fusidic acid ointment, and so on. A bandage is also required, and the area should be kept clean and dry with regular sterilization and dressing changes. As long as the nail bed is undamaged, the new nail will grow back in about six months. If the broken end pierces the nail bed or the nail periphery, or if the wound becomes red, swollen or pus-filled, you should go to the hospital for treatment.