The frequency of gauze changes for dressing wounds needs to be determined by the specific situation, and can be changed once every 2 to 3 days, or 3 to 5 times a day if needed. For wounds that have been sutured or formally treated, and there is no special drainage, the gauze can be changed once every 2 to 3 days, and the frequency of change is not very high. The main purpose is to observe the wound for inflammation and to assess wound healing. However, if septic infection is present, the frequency of gauze changes will be more frequent due to the large amount of wound exudate and exudate. Since a large amount of wound exudate can leach out onto the surface gauze, frequent changes may require 3 to 5 changes per day. For special wounds, it is necessary to observe the changing condition of the wound, such as the wound condition of the skin flap graft, which needs to be changed 2 to 3 times a day. For incision wounds and septic wounds, sometimes it is necessary to change to a different dressing, which may need to be changed once a day. Therefore, it is recommended to clarify the specific type of wound, choose the appropriate gauze and then change it according to the requirements, and consult the advice of a medical professional.