Bed adhesion refers to the ability of a 3D printed object to stick to the build platform during the printing process. Good bed adhesion is crucial because it helps prevent warping and ensures that the first layers of the print remain in place, leading to a successful print. Various factors, such as the type of 3D printer, the material used, and the surface of the build plate, can influence bed adhesion. To improve bed adhesion, users can employ different techniques, such as using a heated bed, applying adhesives like glue stick or blue painter's tape, or adjusting the first layer height. Each method can enhance the bond between the printed object and the build surface, ultimately resulting in better print quality and reliability.