Maceration

Maceration (from the Latin macerare — “to soften”) is defined as the softening and swelling of tissues, most commonly the skin, resulting from prolonged exposure to moisture. This condition compromises the barrier function of the epidermis.

Upon visual examination, macerated skin appears pale, wrinkled, and loose. In addition to external changes, it becomes highly susceptible to mechanical injury and microbial invasion. A simple physiological example of maceration is wrinkled skin after fingers have been immersed in water for extended periods. The effect, however, is temporary.

Aetiology and Pathophysiology

Note that any prolonged contact between skin and moisture can lead to maceration. Pathophysiologically, the stratum corneum of the epidermis becomes oversaturated with water, leading to disruption of its integrity. Common contributing factors include:

• Prolonged use of wet dressings or adhesive strips.
• Continuous exposure to bodily fluids (urine, feces, wound exudate).
• Excessive sweating (hyperhidrosis), particularly in skin folds.

Clinical Significance

Maceration is not considered a standalone disease but serves as an important clinical sign that can complicate the course of many conditions. It significantly increases the risk of secondary bacterial or fungal infections.

In wound management, macerated skin around the wound markedly delays healing due to excessive exudate, consequently impeding epithelialization. Prevention and treatment focus on eliminating exposure to moisture: timely dressing changes, use of barrier creams, and application of highly absorbent wound covering.