A tissue adhesion prevention hydrogel is provided and engineered with essential features for maintaining separation between tissues and organs in any part of the body, thus preventing adhesion formation, are their shear-thinning, viscoelasticity, and rapid self-healing. A method of using the tissue adhesion prevention hydrogel for tissue adhesion prevention is also provided. A method of interposing the tissue adhesion prevention in between tissue layers for tissue adhesion prevention is further provided.