Self-healing polymers are advanced materials designed to automatically repair themselves after damage. These polymers contain special chemical components that can react when the material is broken, allowing it to restore its original structure and functionality. This property can significantly extend the lifespan of products made from these materials, reducing waste and maintenance costs. The self-healing process can occur through various mechanisms, such as microcapsules that release healing agents upon fracture or dynamic covalent bonds that can reform after being disrupted. Applications of self-healing polymers include coatings, electronics, and biomedical devices, showcasing their versatility and potential in numerous industries.