The introduction establishes the importance of menstrual health in the workplace, driven by increased media attention and initiatives like Spain's period leave. Hormonal fluctuations during the menstrual cycle influence energy, mood, and concentration, while conditions like premenstrual symptoms (PMS) or menstrual dysfunctions contribute to absenteeism and gender gaps in earnings. These challenges highlight the need for workplace adaptations to support women’s well-being. Section 1.1 defines the problem statement, emphasizing the pivotal role of workplaces in shaping women’s overall health and the need to align environments with their menstrual health needs. Section 1.2 outlines the research objectives, focusing on how factors such as leadership, organizational culture, and stress management impact menstrual health and performance. The study adopts a biopsychosocial perspective, employing quantitative methods to analyze workplace influence. Section 1.3 provides an overview of the thesis structure, introducing the theoretical foundation (Chapter 2), methodology (Chapter 3), results (Chapter 4), and discussion and recommendations (Chapter 5). By addressing these topics, the introduction sets the stage for exploring how workplaces can evolve to support inclusive and productive environments.