Wounds with cavities should be treated according to the size of the cavity defect and the degree of wound cleanliness. Commonly used methods are one-stage suture and deferred suture. For clean wounds with small hollow defects and no obvious tension after closure, one-stage suturing can be used, in which the wound and surrounding skin are thoroughly disinfected first, and then sutured layer by layer from deep to shallow after debridement. For wounds with large cavity defects that are difficult to close, or wounds with contamination should be delayed, the wound and surrounding skin can be fully disinfected, and then filled with Vaseline gauze, etc., waiting for the generation of new tissue in the cavity, or the infected wound to be controlled before suturing. For cavity wound closure, ensure that the wound is closed layer by layer without leaving a cavity. When there is a large tension in the wound, do not force the wound to close, so as not to cause wound dehiscence and affect the healing.