Graves disease is by far the most common cause of hyperthyroidism. Is an immunologic disorder and it is distinguished clinically from other forms of hyperthyroidism by the presence of diffuse thyroid enlargement, ophthalmopathy, and occasionally pretibial myxedema. In this paper we summarize the prolific life of Robert Graves and we also describe the signs and symptoms of hyperthyroidism. In today s medicine, were technology plays a very important role, we would like to remark the value of anamnesis and physical exam as some of the most useful tools.