Hydrogel which is also known as super absorbent polymer is a type of polymer whose structure is three dimensional and it is capable of swelling and absorbing large amounts of water. Such absorption of water depends on many factors such as type of the polymer, temperature, pressure, and other factors such as the cross linking density. There are many types of hydrogels around the world. One of these types is Poly (vinyl alcohol) cross linked with aldehyde such as Glutaraldehyde. Another example is Methylene-Bis-Acrylamide cross linked Poly (2-Acrylamide-2-Methyl-1-Propane Sulphonic acid) hydrogel (PAMPS).