An Underpad (Absorbent), commonly known as a chux or bed pad, is a disposable, multi-layered product designed to protect bedding, furniture, and other surfaces from fluid damage and contamination. These pads are an indispensable item in healthcare, home care, and even pet care settings, serving as a reliable barrier against urine, blood, and other bodily fluids. The typical construction of an absorbent underpad involves several layers: a soft, non-woven top sheet that is gentle against the skin and allows fluids to pass through; an absorbent core, usually made of fluff pulp or superabsorbent polymers, which rapidly locks away liquid and neutralizes odors; and a waterproof, non-slip backing, often made of polyethylene, that prevents leakage onto the underlying surface and keeps the pad securely in place. Underpads come in various sizes and absorbency levels, catering to different needs and fluid volumes, from light incontinence to heavy drainage. They are widely used for patients with incontinence, individuals recovering from surgery, those with wounds that produce exudate, or during procedures where spills are anticipated. Beyond protecting surfaces, underpads also contribute to patient comfort and skin integrity by wicking moisture away, thereby reducing the risk of skin irritation, rashes, and pressure ulcers. Their ease of use, disposability, and effective barrier properties make them a practical and hygienic solution for managing fluid control in a wide range of scenarios.