Prader-Willi Syndrome (PWS) is a complex and rare genetic disorder that manifests with a constellation of physical, cognitive, and behavioral challenges. Named after the Swiss doctors who first described it in 1956, Prader-Willi Syndrome is primarily caused by a deletion or absence of certain genes on chromosome 15, and less frequently by maternal uniparental disomy or imprinting defects. One of the hallmark features of PWS is insatiable hunger, leading to severe overeating and obesity if not rigorously controlled. This hyperphagia, coupled with a reduced metabolic rate, presents a considerable risk for obesity-related complications. Individuals with PWS often exhibit distinctive facial features, such as almond-shaped eyes, a narrow forehead, and a downturned mouth. Beyond the physical characteristics, the syndrome is associated with intellectual disabilities, learning difficulties, and varying degrees of developmental delays. Behavioral issues are common, encompassing obsessive-compulsive tendencies, skin-picking, and temper outbursts. Hypotonia, or low muscle tone, is prevalent in infancy, affecting motor skills and milestones. As individuals with PWS age, they may also experience hormonal imbalances, including growth hormone deficiency, leading to short stature. Additionally, sleep disturbances, psychiatric disorders, and social challenges contribute to the complex clinical picture of Prader-Willi Syndrome. A multidisciplinary approach involving medical, nutritional, and behavioral interventions is crucial for managing PWS, and ongoing research seeks to enhance our understanding of this intricate disorder to improve the quality of life for those affected and support their families and caregivers.