A puppy potty pad is an absorbent pad designed to be used as a bathroom area for puppies. It is usually made of multiple layers, including a waterproof bottom layer, an absorbent layer in the middle, and a top layer often scented to attract the puppy. The purpose of a puppy potty pad is to provide a designated spot for puppies to relieve themselves indoors, especially when they haven't yet been fully trained to go outside or when outdoor options are not readily available.