This article describesthe concept of gluco-phenotype, i.E., the clinical and biochemical attributes, which allow characterization of the glycaemic status, understanding of the etio-pathogenesis of dysglycaemia, and planning of therapeutic strategies, in an individual. It emphasizes the need to take a detailed history, conduct a comprehensive physical examination, and assess various glycaemic parameters, including fasting glucose, postprandial glucose, and HbA1c, while planning diabetes management.