Hydrocolloid dressings are designed to maintain a moist wound environment that promotes autolytic debridement and facilitates healing. They are most effective for wounds with light to moderate exudate, as they absorb excess fluid while preventing wound desiccation. These dressings form a gel on contact with wound fluid, providing a barrier against bacteria and contaminants. They are not suitable for heavily bleeding wounds due to limited absorption capacity or for dry wounds where moisture retention is unnecessary. Proper use of hydrocolloids supports optimal wound healing for wounds with moderate drainage.

Reference: Falanga, Wound Care Essentials, 5th Edition.