Extrusion is very challenging process for maintaining the desired product quality for the manufacturers. To get required quality of the pvc pipes, we have to identify, control and regular monitoring of quality parameters. Some of the important parameters on which product quality depends are working conditions, temperatures, pressure, die surface and material used. The defects in the product quality affects the cost of the production and product life cycle. Till date, manufacturer faces problems in the extrusion process which impacts on the product quality. The purpose of this review paper is to analyze the defects in the pvc pipes during extrusion process, its impact on the product quality and to suggest the remedies for better quality of the pvc pipes. [1]