Polymers are the macromolecules attained by repetition of a simple chemical unit itself into a large number of times. Some polymers are biocompatible so they can be used as biomaterials and that can be of the following types, i.e., Natural Polymers: Chitosan, Collagen, Alginate. Applications of these natural polymers are in medical industry such as drug delivery, wound dressing and tissue engineering. Synthetic Polymers like Polyvinylchloride (PVC), Polypropylene, Polymethyl methacrylate are used in implants, medical disposable supplies, dressings, etc. Biodegradable Biomaterials: Polyactide, Polyglycolide, etc. These kind of biomaterials are valuable as they regenerate tissue and does not leave any residual traces upon implantation. These are mostly used for tissue screws, cartilage repair, and drug delivery systems. Biomaterials can also be used as packaging material. Polymer composites are widely used for preparing medical implants.