The tapeworm-like shape of iodoform gauze occurs because it is supplied as a long, thin, ribbon-like strip soaked in iodoform solution. When pulled from the bottle, it unravels in a continuous, flexible strand, resembling a tapeworm. This design makes it ideal for packing deep or irregularly shaped wounds, such as abscesses, fistulas, and post-surgical cavities, ensuring gradual iodine release for sustained antimicrobial action. The gauze is packed loosely into the wound to allow drainage and pr