Polyhydroxyalkanoates are polyesters obtained in nature by various microorganisms, including through bacterial maturation of sugars or lipids. When delivered by microscopic organisms they fill in as both a wellspring of vitality and as a carbon store. Beyond what 150 unique monomers can be joined inside this family to give materials with amazingly various properties. These plastics are biodegradable and are utilized in the creation of bio plastics. They can be either thermoplastic or elastomeric materials, with liquefying directs running from 40 toward 180 °C. . Polyhydroxyalkanoates (PHAs) are biopolyesters, put away inside cells as vitality stockpiling materials by different microorganisms. Because of their biocompatibility and biodegradability, PHAs have a wide scope of uses in different enterprises, for example, biomedical segment including tissue building, bio-embed patches, tranquilize conveyance, medical procedure and wound dressing. PHAs are green plastics and they have positive social and ecological effect when contrasted and customary plastics as far as creation and reusing. Besides, PHAs don't have intense and constant wellbeing impacts when utilized in vivo. These bioplastics speak to an inexhaustible and economical asset to lessen landfill necessities without being perseverance or causing contamination. A wide scope of carbon sources, bacterial strains, aging conditions and recuperation strategies have been purposed by different analysts for better yield and prudent points of view. Ongoing headways in manufactured science and hereditary building has prompted the creation of PHAs from non-PHAs delivering strains without any poisons.The mechanical properties and biocompatibility of PHA can likewise be changed by mixing, adjusting the surface or joining PHA with different polymers, compounds and inorganic materials, making it workable for a more extensive scope of uses.