1. Natural materials such as natural gauze are cotton gauze dressings made of cotton fibers after degreasing and sterilization. They protect wounds through physical effects. Suitable for covering and protecting various wounds.

2. Synthetic polymer materials such as medical polymer drug dressings are used as dressings for medical surgical incisions and wounds. The dressing uses the porous polymer polyvinyl formal as a carrier and can strongly absorb exudate from surgical incisions or trauma wounds. Or pus, and drugs can be applied to it to have a bactericidal and analgesic effect. Suitable for those with wound infection and exudation.

3. Composite material dressings: Since wound healing is a complex process, different wounds and different stages of the same wound have different requirements for dressings, so composite material auxiliary materials have been produced to meet diverse needs. For example, hydrocolloid dressings are made of elastic polymeric hydrogel mixed with synthetic rubber and adhesives. They are mainly used for the treatment of chronic wounds such as pressure ulcers and venous ulcers.