Biodegradable polymers degrade thanks to the hydrolysis (chain scission) of the polymer chains. Two theories of hydrolysis are that 1) scissions occur randomly at any bond chained , and 2) scissions occur within the final bond at chain ends. during this study, a simulation tool was developed to simulate both random chain scission and chain end scission. The effect of every sort of scission was analysed. Random scissions were found to possess over 1000 times greater impact on relative molecular mass reduction than end scissions. For the degradation of poly carboxylic acid by random scission,