The expression "polymer" gets from the antiquated Greek word polus, signifying "some, much" and meros, signifying "parts", and alludes to an atom whose structure is made out of various rehashing units. A polymer is an extensive particle (macromolecules) made out of numerous rehashed subunits, known as monomers. Biodegradable polymers are characterized as polymers included monomers connected to each other through practical gatherings and have unsteady connections in the spine. Polymer corruption is an adjustment in the properties – elasticity, shading, shape, and so forth of a polymer or polymer based item affected by one or more natural components, for example, warmth, light or chemicals. Compound or enzymatic corruption is intervened by water, catalysts, microorganisms. Grouping of biodegradable polymers taking into account the source like natural biodegradable polymers and synthetic biodegradable polymers. Biodegradable polymers have demonstrated their potential for the improvement of new, progressed and proficient DDS and equipped for conveying an extensive variety of bioactive materials. However, just few have entered the business sector since numerous medications confronts the issue of affectability to warmth, shear strengths and association between polymers. These issues can be overcome by completely understanding the debasement component to modify the discharge profile. Numerous engineered biodegradable polymers are accessible and as yet being produced for supported and focused on medication conveyance applications.