The difference between petroleum jelly gauze and ordinary medical gauze is manifested in different composition, different performance, different application scope and so on. 1. Different composition: Vaseline gauze is composed of degreased sterile gauze and petroleum jelly; ordinary medical gauze is composed of degreased gauze. 2. Different performance: Vaseline gauze has the function of lubrication, preventing the adhesion of gauze and wound, promoting the growth of granulation, and facilitating wound healing, etc. Ordinary medical gauze is mainly used for bandaging wounds, or cleaning up blood stains in wounds to prevent wound infection. 3. Different scope of application: Vaseline gauze is mainly applied to cover various wound surfaces, such as burn dressing, non-infectious wound dressing; ordinary medical gauze is mainly applied to cover uninfected wounds, clean wounds in surgery, filling and family health care, etc., and is also used as a protective layer on the outside of all dressed wounds.