Endocrinology and metabolic medicine questions are generally fair, as they tend to reflect what is common. Since thyroid disease is so common, a broad understanding of the clinical presentation, underlying biological mechanisms, and treatment of thyroid disease is a favourite topic. However, other topics are equally important (including tests of adrenocortical function, adrenal hypo-and hyper-functioning, hypertension, ovary and testis medicine, growth, parathyroid disease, disorders of lipid metabolism, and in particular diabetes mellitus).