The classification systems for lipedema (Fig. 1) have evolved significantly as understanding of the disease has advanced, with a growing emphasis on evidence-based approaches. Initially, lipedema was classified solely based on clinical presentation and morphology of the affected limbs. However, recent classification systems have integrated pathophysiological insights, genetic data, and imaging findings to create a more nuanced categorization. For instance, the differentiation between types of lipedema based on fat distribution patterns—such as predominantly hips, buttocks, or legs—has been refined with the understanding that adipose tissue in lipedema has distinct metabolic and histopathological features compared to normal adipose tissue. Advanced imaging techniques like lymphoscintigraphy and MRI have also been incorporated to identify early lymphatic dysfunction, even when clinical signs of lymphedema are not yet present. Genetic studies have begun to uncover potential hereditary patterns and markers, suggesting a polygenic influence which may inform future subclassifications. These evolving classification systems are crucial for tailoring treatment strategies to individual patients, enabling targeted therapies that address the specific manifestations and stages of lipedema, and for facilitating robust clinical research that can yield further insights into this complex and often misdiagnosed condition.