Vaseline gauze, also known as oil gauze, is a very common type of gauze used in clinical practice. Vaseline gauze is composed of degreased sterile gauze and petroleum jelly. For patients suffering from trauma, if the wound is bleeding more, or if the wound is more contaminated and oozing more blood and fluid, covering the Vaseline gauze in this case can block the bacteria from coming into contact with the skin, thus reducing the possibility of infection. In addition, petroleum jelly gauze can also promote the growth of granulation tissue on the wound and promote wound healing. If the wound bleeds a lot, when applying ordinary gauze dressing, there is a possibility that a scab will form, and the scab may adhere to the gauze, while applying petroleum jelly gauze will avoid this situation, and will not cause irritation to the wound when changing the dressing.