This study aims to investigate the causes and effects of Performance-Enhancing Drugs (PEDs) among Malaysian athletes. This research employs a qualitative methodology based on semi-structured interviews. To obtain a deeper understanding of Malaysian athletes' knowledge regarding the use of prohibited substances and the extent to which the use of these substances affects their performance as athletes, the primary source for this study was interviews with five athletes. Five athletes and sports officials who have represented Malaysia in various sports such as rugby, weightlifting, and bodybuilding are included in this research. Using thematic analysis, meaning was extracted from the interview data. The results of the study indicate that the use of performance-enhancing drugs (PEDs) by Malaysian athletes is a complex issue influenced by multiple internal and external factors. Given the potential internal factors that may encourage PEDs use, such as the desire for a competitive edge or an achievement-oriented mindset, it is essential to note that these factors are not unique to Malaysia and may also apply to athletes from other nations. Significant and pervasive effects of PEDs on Malaysian athletes have been documented. Although they can temporarily improve athletic performance, they pose significant health risks and can result in anti-doping rule violations, ethical concerns, and negative effects on athletes, sports, and the national image. This study's findings have significant implications for numerous parties, including sports organizations, policymakers, instructors, and athletes. It emphasizes the need for comprehensive education and awareness programs aimed at athletes of all levels to discourage the use of performance-enhancing drugs (PEDs) and emphasize the significance of fair play and long-term health. To preserve the integrity of sports competitions, sports organizations and policymakers should also institute stringent drug testing protocols and strict penalties for athletes caught using PEDs. To maintain a level playing field for all athletes and to promote the ideals of equitable competition and sportsmanship, it is essential to continue monitoring and addressing the challenges posed by PEDs.