Premenstrual syndrome (PMS) refers to the physical, emotional, and behavioral symptoms that some women experience in the days leading up to their menstrual period. It is a common condition that affects women of reproductive age and is closely tied to fluctuations in hormonal levels throughout the menstrual cycle. The symptoms of PMS can vary widely between individuals, ranging from mild discomfort to severe disruptions in daily life. Understanding PMS is crucial in the context of theoretical perspectives on health and medicine, as it highlights the complex interplay between biological, psychological, and social factors that influence women's health and well-being.