Hydrogels are a class of materials that have gained widespread attention in recent years due to their unique physical and chemical properties, as well as their potential for use in a variety of applications. A Hydrogel is three dimensional network of cross linked polymers that is capable of swelling in water, resulting in a soft gel –like material that can be used for a variety of purposes. Hydrogels are three-dimnensional polymer networks that can be absorb and retained large amounts of water. They have gained widespread attention due to their unique properties, including high water content, biocompatibility, and biodegradability. Hydrogels can be synthesized from a wide range of polymers, including natural and synthetic polymers.