Of all of the organ systems in clinical medicine, the endocrine system is among the most difficult to master since it requires a detailed and knowledgeable integration of many of the body's separate systems. In forensic pathology, the evaluation of a sudden unexplained death can be challenging depending upon the particular disease processes and the organ systems that are affected. It is therefore not surprising that the investigation of sudden unexplained deaths involving the endocrine system can be particularly daunting. This review attempts to focus upon three of the major endocrine/metabolic conditions that may be potentially life-threatening and fatal in the pediatric population-hypoglycemia, adrenal insufficiency, and hyperthyroidism-and to provide forensic pathologists with a practical strategy for working up these cases. By adopting a more focused and selective approach to pediatric endocrine conditions rather than an exhaustive and comprehensive study of them, it is the intention of this review to make these disorders more manageable conceptually and to optimize the chance of arriving at a decisive and ultimately accurate postmortem diagnosis.