<p>This article presents the growth analysis of a vapour bubble present inside a cylindrical tube; peristaltic movement is assumed at the walls of the tube. The study is carried out under the impact of a magnetic field and slip conditions at the wall. The mathematical model of the problem, based on momentum and energy equations, is solved, and analytical solutions are obtained for velocity and temperature fields. The growth of the bubble is analyzed by plotting graphs of radius and radius velocity of the bubble. It is revealed that vapour bubble starts shrinking as the applied magnetic field intensifies. The variation in velocity and temperature profiles for various emerging parameters is also observed through graphs. Understanding the behavior of vapour bubbles is crucial for enhancing the efficiency of power plants, as the formation of these bubbles inside the fuel rods directly impacts thermal performance; therefore, this study aims to provide insight into the dynamics of vapour bubbles flowing within a peristaltic flow.</p>