Medical dressings are medical materials used to cover wounds or lesions; their primary functions are to protect the wound site, absorb exudate, act as a barrier against pathogens, and promote healing, while simultaneously reducing the risk of infection and accelerating tissue repair.
Covering the wound: Prevents friction, contamination, or secondary injury, while providing a moist environment for the wound bed to prevent drying and scab formation.
Absorbing exudate: Utilizes highly absorbent materials (such as foam dressings or hydrocolloid dressings) to absorb blood and tissue fluids exuding from the wound, thereby keeping the wound bed clean.
Isolating pathogens: Some dressings contain antimicrobial agents (such as silver-ion dressings) that inhibit bacterial proliferation and reduce the risk of infection.
Hemostasis and immobilization: Certain dressings (such as gauze or bandages) can apply pressure to control bleeding or immobilize the tissues surrounding the wound, thereby minimizing the impact of movement on the wound site.
