Hydrofibre

Hydrofibre is a category of wound dressings that form a gel when exposed to wound exudate. The dressings are typically composed of hydrophilic cellulose-based fibers that swell and gel on contact with fluid, helping to maintain a moist wound environment and trap debris. They are marketed under several trade names and are used worldwide in modern wound management.

Most hydrofibre dressings use sodium carboxymethylcellulose (NaCMC) fibers integrated into a nonwoven matrix. When fluids contact the dressing, the fibers swell and gel, absorbing exudate and forming a cohesive scaffold that traps bacteria and wound debris. The gel helps reduce maceration of surrounding skin and can conform to irregular wound geometries.

Hydrofibre dressings are indicated for moderately to heavily exudating wounds, including venous leg ulcers, diabetic ulcers, pressure injuries, surgical wounds, and burns. The dressing is usually covered with a secondary layer and can remain in place for 1–4 days depending on exudate. They are not recommended for dry wounds or wounds with little exudate, and care must be taken to avoid sticking if the wound dries.

Benefits include high absorbency, gel formation that helps maintain moisture and reduce bacteria spread, and relatively gentle removal. Limitations include potential adherence if the wound dries, cost considerations, and the need for clinical assessment to ensure appropriate exudate management and infection control.