After trauma, the patient may have a large and deep wound. If there is such a wound, then there may be a foreign body in the wound or there is more bleeding, first of all, compression should be carried out to stop bleeding; in addition, the wound should be probed to see whether there is a foreign body in the wound, if there is a foreign body in the wound, it should be cleared of foreign bodies, you can flush the wound with hydrogen peroxide, clear the foreign body, and then wash the wound thoroughly with saline, you need to probe whether there is damage to the tendons, blood vessels, nerves, if there is such a situation, it should be handled accordingly. If this occurs, it should be treated accordingly. In addition, if there is a relatively large necrotic tissue in the wound, the necrotic tissue needs to be removed, and the wound should be cleaned and sutured, and the wound should be bandaged; it is also necessary to inject a tetanus shot to prevent tetanus, and the wound should be disinfected and changed on a regular basis to prevent the wound from becoming infected, and the contaminated wounds need to be applied with some antibiotics to prevent the wound from becoming infected.